Encyclopedia

Ex Corde Ecclesiae Ex Corde Ecclesiae (Latin:"From the Heart of the Church") is an Apostolic constitution written by Pope John Paul II regarding Catholic colleges and universities. It was promulgated on August 15, 1990.
Ex facie Ex facie, Latin for "on the face [of it]," is a legal term typically used to note that a document's explicit terms are defective without further investigation. For example, a contract between two parties would be void if, ex facie, the document does not require party A to give consideration to party B for services rendered.
Ex Machina (Star Trek) Star Trek: Ex Machina is a novel based on characters from Star Trek: The Original Series (TOS) and Star Trek: The Motion Picture (TMP). The story is set shortly after the events of the movie, and also acts as a sequel to the episode "For The World Is Hollow And I Have Touched The Sky".
Ex Marsick Stradivarius The Ex-Marsick Stradivarius is a violin named for Belgian violinist and teacher Martin Pierre Marsick (1847-1924) who owned the instrument made by Antonio Stradivarius in 1715. Violin virtuoso David Oistrakh played it from 1966 until his passing in 1974.
Ex parte Quirin Ex parte Quirin, is a Supreme Court of the United States case that upheld the jurisdiction of a United States military tribunal over the trial of several Operation Pastorius German saboteurs in the United States. Quirin has been cited as a precedent for the execution of any unlawful combatant against the United States.
Ex post facto law An ex post facto law (from the Latin for "from something done afterward") or retroactive law, is a law that retroactively changes the legal consequences of acts committed or the legal status of facts and relationships that existed prior to the enactment of the law. In reference to criminal law, it may criminalize actions that were legal when committed; or to aggravate a crime by bringing it into a more severe category than it was at the time it was committed; or to change or increase the punishment prescribed for a crime, such as by adding new penalties or extending terms; or to alter the rules of evidence in order to make conviction for a crime more likely than it would have been at the time of the action for which a defendant is prosecuted.
Ex Pistols The Ex Pistols, formed in 1979 by Dave Goodman were the first 'tribute' to the Sex Pistols after they'd split. The band itself was never solid, but instead consisted of various session musicians and occasionally, input from the Sex Pistols themselves (minus of course, John Lydon).
Ex rel Ex rel is an abbreviation of the Latin phrase "ex relatione" meaning "by the relation of" (or, loosely translated, "on behalf of"). The term is a legal phrase most commonly used when a government brings a cause of action upon the request of a private party who has some interest in the matter.
Ex turpi causa non oritur actio In civil law, especially contract law, ex turpi causa non oritur actio is the doctrine that an action may not be founded on illegality. (The term is Latin, and means roughly "a dishonorable cause does not give rise to an action.
Ex-convict school teachers in Western Australia Following Western Australia's convict era, 37 ex-convicts were appointed school teachers in the colony. The appointment of such a large number of ex-convicts to what was considered a respectable government position was highly unusual for a penal colony, as the social stigma of conviction usually excluded ex-convicts from such positions.
Ex-Cubs Factor The Ex-Cubs Factor is a seemingly spurious correlation that is essentially a corollary to the Curse of the Billy Goat. Widely published in 1990, the hypothesis asserts that since the last appearance by the Chicago Cubs in the 1945 World Series, any baseball team headed into the post-season tournament with three or more former Cubs on its roster has "a critical mass of Cubness" and a strong likelihood of failure.
Ex-ex-gay The term ex-ex-gay is predominantly used to describe American evangelical Christian people who publicly acknowledge their sexual orientation as falling under the LGBT umbrella, after their participation in the ex-gay movement. Ex-ex-gay people often publicly declare to have ended the attempt to change their sexual orientation to heterosexuality, and to have embraced their sexual orientation as lesbian, gay, bisexual, or queer.
Ex-gay The ex-gay or exodus movement is a controversial movement that consists of several groups that seek to alter the sexual orientation of homosexual or bisexual individuals to a heterosexual orientation. Most of these groups believe that all homosexual or bisexual individuals are able to make this change.
Ex-Mormon Ex-Mormon refers to a former or inactive member of The Church of Jesus Christ of Latter-day Saints or any one of the Latter Day Saint denominations, colloquially and collectively called "Mormonism." Ex-Mormon may also refer to various aggregations of ex-Mormons who comprise a social movement.
Ex-Nazis The title of ex-Nazi refers either to those few who were once Nazis and resigned from the party, or more often to those who belonged to the party at the time when the Nazi party was declared illegal and was disbanded upon the victory of the Allies. Many of the latter group had to go through a process of denazification and some were subjected to the Nuremberg process, while others managed to escape trial, in particular through the ODESSA organization.
Ex-service Ex-service is a British term which refers to those who have served in the British Empire or Commonwealth Armed Forces. Earlier, the term ex-servicemen or Ex-servicewomen was used,but has been replaced with one having no gender connotations.
Ex-service organisation In the United Kingdom and its former colonies, an ex-service organisation is a voluntary organisation dedicated to the welfare of ex-service personnel (veterans). In addition to welfare services, they often participate in community projects and their 'local' or club is often a well-known meeting place or restaurant in a locality.
Ex-situ conservation Ex-situ conservation means literally, "off-site conservation". It is the process of protecting an endangered species of plant or animal by removing it from an unsafe or threatened habitat and placing it or part of it under the care of humans.
Ex-Soldiers and Ex-Sailors Party of Manitoba The Ex-Soldiers and Ex-Sailors Party of Manitoba was a political party aligned with reformist labour groups in Manitoba, Canada. In the provincial election of 1920, the party ran Samuel Cartwright as part of the ten-member labour list in Winnipeg.
Exact coloring In graph theory, an exact coloring is a (proper) vertex coloring in which every pair of colors appears on exactly one pair of adjacent vertices. In essence, an exact coloring is a coloring that is both harmonious and complete.
Exact differential In mathematics, a differential dQ is said to be exact, as contrasted with an inexact differential, if the function Q exists. It is always possible to calculate the differential dQ of a given function Q(x, y, z).
Exact functor In homological algebra, an exact functor is a functor, from some category to another, which preserves exact sequences. Exact functors are very convenient in algebraic calculations, roughly speaking because they can be applied to presentations of objects easily.
Exact Change Exact Change is an independent book publishing company formed in 1990 by Damon Krukowski and Naomi Yang of Galaxie 500 and later of Damon and Naomi. The company specialises in re-publishing 19th and 20th century avant-garde literature and has published works by John Cage, Salvador DalĂ­ and Denton Welch among many others.
Exact renormalization group equation In quantum field theory and statistical mechanics, an exact renormalization group equation is an exact (meaning precisely that) renormalization group equation unlike approximate ones like the Callan-Symanzik equation which doesn't take irrelevant couplings into account. There is more than one ERGE.
Exact science The term exact science refers to fields of study that admit especially precise predictions and rigorous methods of testing hypotheses, especially reproducible experiments involving quantifiable predictions and measurements. The term implies a dichotomy between these fields and those such as sociology and economics, where prediction and experiment are more difficult.
Exact sequence In mathematics, especially in homological algebra and other applications of abelian category theory, as well as in group theory, an exact sequence is a (finite or infinite) sequence of objects and morphisms between them such that the image of one morphism equals the kernel of the next.
Exact solutions in general relativity In general relativity, an exact solution is a Lorentzian manifold equipped with certain tensor fields which are taken to model states of ordinary matter, such as a fluid, or classical nongravitational fields such as the electromagnetic field.
Exact test In statistics, an exact (significance) test is a test where all assumptions that the derivation of the distribution of the test statistic is based on are met. This will result in a significance test that will have a false rejection rate always equal to the significance level of the test.
Exactly solvable model In theoretical physics, an exactly solvable model or integrable model refers to a physical model, a physical theory, or set of differential equations whose exact solution may be calculated analytically in terms of elementary or special functions; the adjective integrable therefore implies solvablility. Models in statistical mechanics are considered to be completely solved if one has an exact expression for the partition function as a function of the parameters, or the full set of correlation functions.
Exaltation (Mormonism) Exaltation or Eternal Progression is a belief among members of The Church of Jesus Christ of Latter-day Saints (LDS Church) that mankind, as spirit children of their Father in Heaven, can become like Him. Although the exact meaning of this has not been defined, most Latter-day Saints speculate that this signifies they may enter the Celestial Kingdom and dwell in the Father's presence.
Exalted Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy," as the original developer specifically avoided drawing on J.
Exalted Cyclops Exalted Cyclops was an officer title and rank used by the Ku Klux Klan, based in the United States, at its peak in the early to mid 20th century. The rank signified the leader of a local Klan chapter, or Klanton as they were known.
Exalted signature characters Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy," as the original developer specifically avoided drawing on J.
Examen artium Examen artium is the name of the academic certification conferred in Norway, qualifying the student for admission to university programs. It was formally discontinued after the 1981 class, but is sometimes used colloquially to describe the final examinations of Norwegian secondary schools.
Examilia Examilia (Greek: Εξαμίλια) is a community in the municipality of Corinth. Distance is about 7 km south of Corinth and 3 km S of the Corinth interchange with GR-8A/E94, the old road and E of GR-7 and E65, E of Kechries (Cenchreae), W of Loutra Elenis.
Examination board An examination board is an organisation that sets examinations and is responsible for marking them and distributing results. As such, examination boards have the power to award qualifications to students (such as SAT scores).
Examination for Japanese University Admission The ; literally, "Japan Foreign Study Test"), more commonly referred to as simply the Examination for Japanese University Admission (EJU), is a standardized test that began in 2002 as a replacement for both the Japanese Language Proficiency Test (JLPT) and the General Examination for Foreign Students, the latter of which is no longer administered. It has quickly become the standard admission test for non-Japanese students who are applying to study in Japan, either at the undergraduate or graduate level.
Examination Yuan The Examination Yuan () is in charge of validating the qualification of civil servants in the Republic of China. It is one of the five government branches ("yuans") of the ROC government mandated by the Three Principles of the People.
Example-based machine translation Example-based machine translation (EBMT) approach is often characterized by its use of a bilingual corpus as its main knowledge base, at run-time. It is essentially a translation by analogy and can be viewed as an implementation of case-based reasoning approach of machine learning.
Examples of feudalism Examples of feudalism are helpful to fully understand feudalism and feudal society. Feudalism was practiced in many different ways, depending on location and time period, thus a high-level encompassing conceptual definition does not always provide a reader with the intimate understanding that detail of historical example provides.
Exanthem An exanthem is a widespread rash, usually viral, and usually occurring in children. It represents either a reaction to a toxin produced by the organism, damage to the skin by the organism or an immune response.
Exaptation An exaptation is a biological adaptation where the biological function currently performed by the adaptation was not the function performed while the adaptation evolved under earlier pressures of natural selection. Exaptations are common in the history of living things.
Exar Kun Exar Kun, Dark Lord of the Sith, (circa 4,000 BBY, spirit destroyed 11 ABY) is a fictional character in the Star Wars Expanded Universe. A highly talented Jedi apprentice to the Old Republic Jedi Master Vodo-Siosk Baas, he later became the Dark Lord of the Sith.
ExaStore ExaStore, a clustrered NAS solution from Exanet, comprises a patented NAS software, including the fully distributed ExaFS™ file system, Intel-based Linux servers (nodes), standard gigabit Ethernet networking components and Fibre channel attached storage array.
Exaugustus Boioannes Exaugustus BoiÎżannes (), son of the famous Basil Boioannes, was also a catapan of Italy, from 1041Chalandon, p 99. Amatus of Montecassino, John Skylitzes, and the Annales Barenses place his arrival in 1041, but Lupus Protospatharius places it in 1042.
ExAlta Energy ExAlta Energy Inc. (, headquartered in Calgary, Alberta, is an oil and natural gas company engaged in the exploration for and the acquisition, development and production of oil and natural gas in West Central and Northwestern Alberta and Northeastern British Columbia.
Excalibur Excalibur is the mythical sword of King Arthur, sometimes attributed with magical powers or associated with the rightful sovereignty of Great Britain. Sometimes Excalibur and the Sword in the Stone (the proof of Arthur's lineage) are said to be the same weapon, but in most versions they are considered separate.
Excalibur (album) Excalibur is a concept album by Grave Digger about the story of King Arthur and the knights of the round table. They had quite an impressive line-up for the backing vocals to this album with Piet Sielck, Hansi KĂĽrsch, Hacky Hackmann + Boltendahl.
Excalibur (comics) Excalibur is a Marvel Comics superhero group, an offshoot of the X-Men, usually based in the United Kingdom. Conceived by writer Chris Claremont and artist/co-writer Alan Davis, the original Excalibur first appeared in Excalibur: The Sword is Drawn (1987).
Excalibur (computer game) Excalibur is a notable early resource-management/strategy computer game for the Atari 8-bit computers. It was designed by game design legend Chris Crawford, developed with the help of Larry Summers and Valerie Atkinson, and published by Atari Program Exchange in 1983.
Excalibur (novel) Excalibur is a Arthurian fantasy novel by Sanders Anne Laubenthal. It was first published by Ballantine Books as part of the celebrated Ballantine Adult Fantasy series in August, 1973, and has been reprinted a number of times since.
Excalibur (wrestler) Excalibur is an American professional wrestler from Southern California. Along with wrestling, he and Disco Machine provide commentary on most all of Pro Wrestling Guerrilla's DVDs, occasionally with retired wrestler TARO, and/or Disco Machine.
Excalibur BBS Excalibur BBS was a Windows-based GUI BBS client, developed by Excalibur Communications. Excalibur was released in 1993, and it has not been officially supported since 1999, when Excalibur Communications ceased operations.
Excalibur Rugby Excalibur Rugby is the name of the men's rugby union team at Trent University in Peterborough, Ontario. The team's motto is Commitment, Intensity, Desire which is expressed in latin on the team's crest (see right).
Excardination and Incardination Incardination and its antonym, Excardination derive from the Latin cardo, a pivot, socket, or hinge (also the root of cardinal)--hence, the Latin verbs incardinare, to hang on a hinge, or fix and excardinare, to unhinge, or set free. In the ecclesiastical sense the words are used to denote that a given person is freed from the jurisdiction of one bishop and is transferred to that of another.
Excavatability The excavatability of an earth (rock and regolith) material is a measure of the material to be excavated (dug) with conventional excavation equipment such as a bulldozer with rippers, backhoe, scraper and other grading equipment. Materials that cannot be excavated with conventional excavation equipment are said to be non-rippable.
Excavate The excavates are a major line of protists, often known as Excavata. The phylogenetic category Excavata includes a variety of free-living and symbiotic forms, as well as microbes varying as to whether they contain mitochondria (that is, amitochondriate versus discicristate).
Excavations at Stonehenge The first recorded excavations at Stonehenge were carried out by William Cunnington and Richard Colt Hoare. In 1798, Cunnington investigated the pit beneath a recently fallen trilithon and in 1810, both men dug beneath the fallen Slaughter Stone and concluded that it had once stood up.
Excavator An excavator, also called a 360-degree excavator or digger, sometimes abbreviated simply to a 360, is an engineering vehicle consisting of a backhoe and cab mounted on a pivot (a rotating platform, like a Lazy Susan) atop an undercarriage with tracks or wheels. Their design is a natural progression from the steam shovel.
Excel (Excel Saga) Excel is the codename of the title character of Rikdo Koshi's manga and anime series Excel Saga. Like all the codenames in Excel Saga, "Excel" derives from the name of a commercial establishment in Japan, in this case a large hotel in Tokyo.
Excelis Dawns Excelis Dawns is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It is part of the Excelis trilogy which continues in Excelis Rising and Excelis Decays.
Excelis Decays Excelis Decays is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It is the final part of the Excelis trilogy which commenced in Excelis Dawns and continued in Excelis Rising.
Excelis Rising Excelis Rising is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It is part of the Excelis trilogy which commenced in Excelis Dawns and concludes in Excelis Decays.
Excellen Browning Excellen Browning is a fictional character from the Super Robot Wars series. She has appeared as a playable character in the Super Robot Wars Compact 2 series, Super Robot Wars Impact and Super Robot Wars Original Generation series.
Excellence (pop group) Excellence were a Swedish pop group from 2001 created through the TV programme Popstars on Kanal 5. The group scored a number one album on the Swedish Charts, as well as five top 10 singles, and entered Melodifestivalen 2002.
Excellence in Cities The Excellence in Cities (EiC) programme was launched by the British Government in March 1999 to raise standards and promote inclusion in inner cities and other urban areas, to try to resolve the educational problems of these inner cities that successive governments have failed to resolve. Initially just based on secondary schools, the programme was proven to be very successful and quickly expanded to include primary schools and worked closely with the Primary National Strategy.
Excellence in Media Award The Excellence in Media Award is presented annually at the GLAAD Media Awards. It is given in New York to individuals in the media and entertainment industries who through their work have increased the visibility and understanding of the LGBT community.
Excellent Italian Greyhound Excellent Italian Greyhound is the title of Shellac's yet-to-be-released fourth album. Songs such as "The End of Radio", "Paco", "Steady as She Goes", "Be Prepared", "Lulabelle", "Boycott", "Repeat The Lie" and "Hang On" have become common at Shellac's recent live shows, and are likely to appear on the record.
Exceller Exceller (1973 - 1997) is widely considered one of the best horses to race in the United States and not win a year-end championship. Despite his exemplary achievements as a racehorse, and his unique accomplishment in being the only horse to ever defeat two Triple Crown winners, Exceller is now remembered more for the tragic manner of his death and the horse rescue movement it helped inspire.
Excello Records Excello Records was started by Ernie Young in Nashville in 1953 as a subsidiary of Nashboro, a gospel label. It was a blues label and recorded such artists as Lonnie Brooks, Lightnin' Slim, Slim Harpo, and Arthur Gunter who recorded an answer song to Eddie Arnold's country and western song "I Wanna Play House with You".
Excellon file In electronics manufacturing, an Excellon file is a text-based file format which is used to control the actions of a CNC drilling machine, commonly used in the drilling of printed circuit boards (PCBs). The Excellon file format is a variant of standard RS-274C.
Excelon Corporation eXcelon Corporation (Nasdaq: EXLN) (formerly Object Design, Nasdaq: ODIS) was a provider of XML database and Object database related technologies. eXcelon was acquired by Progress Software Corporation in October 2002.
ExcelPackage The adoption of the Office Open XML as the native file format for Excel 2007 has opened up a whole host of new possibilities. Now for the first time you can create native Excel files on the server using standard tools (i.
Excelsior (Coventry) Excelsior, based in Coventry, was Britain’s first motorcycle manufacturer, starting production of their own ‘motor-bicycle’ in 1896. Starting out as a bicycle company making penny-farthings in 1874 under their original name: Bayliss, Thomas and Co, although they changed the company name to Excelsior Motor Co.
Excelsior (chess problem) "Excelsior" is one of Sam Loyd's most famous chess problems, originally published in London Era in 1861, named after the poem "Excelsior" by Henry Wadsworth Longfellow. Loyd had a friend who was willing to wager that he could always find the piece which delivered the principal mate of a chess problem.
Excelsior Brigade Fife and Drum Corps The Excelsior Brigade Fife and Drum Corps (aka Excelsior Brigade of Fifes and Drums, Excelsior Brigade, or Western New York Field Music) was founded in 2000 as a combination Ancient Fife and Drum Corps and living history unit dedicated to authentically reproducing the sights and sounds of New York State volunteer militia field musicians as found during the American Civil War.
Excelsior class starship (Star Trek) In the Star Trek fictional universe, the Excelsior class is the most commonly seen type of Starfleet starship. The USS Excelsior was designed by Industrial Light and Magic's Bill George for Star Trek III: The Search for Spock.
Excelsior College Excelsior College is a private college in Albany, New York that specializes in meeting the needs of adult learners. It is most notable for being one of the "Big 3" regionally accredited colleges allowing students to earn a degree entirely through credit-by-examination testing.
Excelsior Diamond The Excelsior Diamond was found on June 30, 1893 at the Jagersfontein mine by a worker while loading a truck. Until 1905, when the larger Cullinan diamond was found, the Excelsior was the largest known diamond in the world.
Excelsior Rotterdam Excelsior is a professional football club from Rotterdam, in the Kralingen-Crooswijk district. It was founded on July 23, 1902 and was formerly known as 'Rotterdamse Voetbal en Atletiek Vereniging Excelsior' (Rotterdam Football and Athletics Union Excelsior).
Excepted service Most civilian positions in the Federal government of the United States are part of the competitive civil service, where applicants must compete with other applicants in open competition under the merit system administered by the Office of Personnel Management. However, some agencies (and some positions within other agencies) are excluded from these provisions.
Excepter Excepter is a four-man noise-improv musical group from Brooklyn known for crawling around the stage during their live performances. They have a new CD/LP coming out on 5 Rue Christine/Fusetron called Alternation.
Exception handling Exception handling is a programming language construct or computer hardware mechanism designed to handle the occurrence of some condition that changes the normal flow of execution. The condition is called an exception.
Exception handling syntax Exception handling syntax varies between programming languages to accommodate their overall syntax. Some languages don't call the concept exception handling or they may not have direct facilities for it, but they can still provide means for implementing it.
Exception chaining Exception chaining, or exception wrapping, is an object-oriented programming technique of handling exceptions by re-throwing a caught exception after wrapping it inside a new exception. The original exception is saved as a property (such as cause) of the new exception.
Exception management Exceptions are special cases that deviate from the normal behaviour in a busines process and need to be cared exceptionally, normally by human intervention. Their cause might include: malformed data, infrastructure or connectivity issues, poor quality business rules, etc.
Exception that proves the rule "Exception that proves the rule" is a common phrase and form of argument in which the existence of a counter example to a rule is used to demonstrate the fact that a rule exists. It is derived from the medieval Latin legal principle: exceptio probat regulam in casibus non exceptis (the exception confirms the rule in the cases not excepted).
Exceptional Administrative Achievement Medal The Exceptional Administrative Achievement Medal is an award given by NASA to any person in the United States Federal service for a significant, specific accomplishment or contribution characterized by unusual initiative or creativity that clearly demonstrates a substantial improvement in administrative support contributing to the mission of NASA, such as:
Exceptional education Exceptional Education, also known as Exceptional Student Education (ESE), usually refers to the education of gifted (also "talented") children, as well as children with physical or mental disabilities. These programs are funded and supported outside the normal class framework: elementary schools dedicating separate classes, wings, and schools (such as magnet schools); secondary schools substituting classes with honors or special-needs classes.
Exceptional Family Member Program The Exceptional Family Member Program (EFMP) is a mandatory enrollment program that works with other military and civilian agencies to provide comprehensive and coordinated community support, housing, educational, medical, and personnel services to families with special needs.
Exceptional object Many branches of mathematics study objects of a certain type and prove a theorem that classifies these objects. A common theme is that the classification results in a number of series of objects as well as a finite number of exceptions that don't fit into any series.
Exceptionalism Exceptionalism is the perception that a country, society, institution, movement, or time period is unusual or extraordinary in some way, and thus does not conform to normal rules, general principles, or the like. Used in this sense, such a perception reflects a belief formed by lived experience, ideology, perceptual frames, or perspectives influenced by knowledge (or lack thereof) of historical or comparative circumstances.
Excess burden of taxation In economics, the excess burden of taxation, also known as the distortionary cost or deadweight loss of taxation, is the economic loss society suffers as the result of a tax, over and above the revenue it collects. Distortions occur because people or firms change their behaviour in order to reduce the amount of tax they must pay.
Excess post-exercise oxygen consumption Excess post-exercise oxygen consumption (EPOC) is a measurably increased rate of oxygen intake following strenuous activity. The extra oxygen is used in the processes that restore the body to a resting state and adapt it to the exercise just performed.
Excess reserves Excess reserves are bank reserves in excess of the reserve requirement set by a central bank (in the United States, a Federal Reserve Bank; in Canada, the Bank of Canada). Holding excess reserves is generally considered costly and uneconomical as no interest is earned on the excess amount.
Excess-3 Excess-3 binary coded decimal (XS-3), also called biased representation or Excess-N, is a numeral system used on some older computers that uses a pre-specified number N as a biasing value. In XS-3, numbers are represented as decimal digits, and each digit is represented by four bits as the BCD value plus 3 (the "excess" amount):
Excessive Force Excessive Force is a musical side project started in 1991 by Sascha Konietzko of KMFDM and Buzz McCoy of My Life With the Thrill Kill Kult. Excessive Force released the single, Conquer Your House in 1991, followed by the album Conquer Your World.
Excise Excise, sometimes called an excise duty, is a type of tax. In the United States, the term has a constitutional law meaning and at least one statutory law meaning, with the tax varying among different jurisdictions.
Excise Tax Reduction Act of 1954 The United States Excise Tax Reduction Act of 1954 actually temporarily extended the 1951 excise tax increases (through March 31, 1955), but also reduced excise tax rates on, among other things, telephones, admissions, and jewelry.
Excision theorem In algebraic topology, a branch of mathematics, the Excision Theorem is a useful theorem about relative homology--given topological spaces X and subspaces A and U such that U is also a subspace of A, the theorem says that under certain circumstances, we can cut out (excise) U from both spaces such that the relative homologies of the pairs (X,A) and (X U,A U) are isomorphic. This assists in computation of singular homology groups, as, sometimes after excising an appropriately chosen subspace, we obtain something easier to compute.

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