Encyclopedia

Heruli The Heruli (spelled variously in Latin and Greek) were a nomadic Germanic people, who were subjugated by the Ostrogoths, Huns, and Byzantines in the 3rd to 5th centuries. The name is related to earl (see erilaz) and was probably an honorific military title.
Herut Herut (Hebrew: חרות "Freedom") was the political party of the Revisionist Zionist movement in Israel. It was conservative and nationalistic and became the main opposition to the Israeli Labour Party.
Herut: The National Movement Herut (חרות "Freedom") or Herut: The National Movement is a right wing Israeli political party. It sees itself as the ideological successor to the historical Herut party and Zeev Jabotinsky's Revisionist Zionist movement.
Hervé (Norman) Hervé was a Norman mercenary general in Byzantine service during the 1050s. About 1050, he first appears as the leader of the Norman mercenaries under Nicephorus Bryennius the Elder and one of the Greek's two chief lieutenants.
Hervé Bazin Hervé Bazin (Jean-Pierre Hervé-Bazin) (April 7 1911, Angers - February 17 1996, Angers) was a French writer, whose best-known novels covered semi-autobiographical topics of teenage rebellion and dysfunctional families.
Hervé Bohbot Herve Bohbot is a French Scrabble player who competes annually in both French and English language Scrabble competitions. He is also an administrator on the online Scrabble site Internet Scrabble Club and the president of the French matchplay Scrabble committee.
Hervé Faye Hervé Auguste Étienne Albans Faye (October 3, 1814 – July 4, 1902) was a French astronomer, born at Saint-Benoit-du-Sault (Indre) and educated at the Ecole Polytechnique, which he left in 1834, before completing his course, to accept a position in the Paris Observatory to which he had been appointed on the recommendation of M. Arago.
Hervé Gaymard Hervé Gaymard (born May 31 1960 in Bourg-Saint-Maurice, Savoie) is a French politician and a member of UMP conservative party. He served as the country's Minister of Finances from 30 November 2004 until his resignation on 25 February 2005.
Hervé Le Tellier Hervé Le Tellier (born April 21, 1957) is a French writer and linguist, and a member of the international literary group Oulipo (Ouvroir de Littérature Potentielle, which translates roughly as "workshop of potential literature"). Other notable members are Raymond Queneau, Georges Perec, Italo Calvino, Jacques Roubaud and Harry Mathews.
Hervé This Hervé This (born 1955 in Suresnes) is a French physical chemist who works at the Institut National de la Recherche Agronomique. His main area of interest is molecular gastronomy, or how our knowledge of chemistry, and science in general, can be used as a tool to enhance culinary experiences, rather than the purely empirical knowledge which more often than not dictates the rules in the kitchen.
Hervé Villechaize Hervé Jean-Pierre Villechaize (April 23, 1943 – September 4, 1993) was a French actor of Filipino ancestry who achieved worldwide recognition for his role as Mr. Roarke's assistant, Tattoo, in the television series Fantasy Island (1978 – 1984).
Hervey (Suikoden) Hervey (ハーヴェイ, Hāvei) is a character in Konami's role playing game Suikoden IV and Suikoden Tactics. The right-hand man of the notorious pirate Kika, and also inferior in rank to Dario--a relationship Hervey has grown to detest as of late.
Hervey Bay, Queensland Hervey Bay is a rapidly growing resort city in south eastern Queensland, Australia. The 'Bay' benefits from a fantastic sub-tropical climate with no real extremes (average 30 degrees in Summer and 23 degress in Winter) and has been voted in the top three of 'best climates' in the World.
Hervormd Gereformeerde Staatspartij The Hervormd Gereformeerde Staatspartij (in English: Reformed Reformed State Party (see below), HGS) was a dutch orthodox protestant political party during the interbellum. For its orthodox political ideals and its refusal to cooperate in any cabinet, the party is called a testimonial party.
Herwarth Walden Herwarth Walden (actual name Georg Lewin, born September 16, 1879, in Berlin; died October 31, 1941, in Saratov, Russia) was a German Expressionist artist and art expert in many disciplines. He is broadly acknowledged as one of the most important discoverers and promoters of German avant-garde art in the early twentieth century (Expressionism, Futurism, Dadaism, Magic Realism).
Heryshaf [Egyptian mythology], Heryshaf ([[Egyptian language|Egyptian Ḥry-š=f "He who is on his lake"), transcribed in Greek as "Harsaphes" was an ancient ram-god whose cult was centered in Herakleopolis Magna (now Ihnasiyyah al-Madinah). He was identified with Ra and Osiris in Egyptian mythology, and to Heracles in Greek mythology.
Herz reaction The Herz-reaction, named after the chemist Richard Herz, is the chemical conversion of an aniline-derivative (1) to a so-called Herz-salt (2) with disulfur dichloride, followed by hydrolysis of this Herz-salt (2) to the corresponding sodium thiolate (3) W. Warburton Chem.
Herzegovina Herzegovina (natively Hercegovina/Херцеговина) is a historical and geographical region in the Dinaric Alps that comprises the southern part of present-day Bosnia and Herzegovina. The area of Herzegovina is 9,948 km² (or 10,190 km² according to other sources).
Herzele Herzele is a municipality located in the Belgian province of East Flanders. The municipality comprises the towns of Borsbeke, Herzele proper, Hillegem, Ressegem, Sint-Antelinks, Sint-Lievens-Esse, Steenhuize-Wijnhuize and Woubrechtegem.
Herzing College Herzing College was one of the first post-secondary institutions founded to train students for the computer industry. Since 1965 business and computer-related education has been the focus of Herzing, even as it grew to encompass six campuses in the U.
Herzl Award In 2004, on the centennial anniversary of Theodore Herzl’s death, the Department for Zionist Activities of the World Zionist Organization created the Herzl Award. This award is given annually to outstanding young men and women in recognition of their exceptional efforts on behalf of Israel and the Zionist cause.
Herzliebster Jesu "Herzliebster Jesu" (usually translated into English as "Ah, Holy Jesus") is a German hymn. Its text was written in 1630 by Johann Heermann, and its tune was written ten years later by Johann CrĂĽger.
Herzliya Herzliya (in Hebrew: הֶרְצְלִיָּה, without Niqqud: הרצלייה, commonly pronounced in Hebrew as Hertseliya) is a city in Israel, on the central coastal strip in the south of the Sharon region, just north of Tel Aviv (about a 20 minutes drive) and south of Netanya, and part of the Tel Aviv metropolitan area in the Tel Aviv District.
Herzliya conference The Herzliya Conference, hosted by the Interdisciplinary Center at Herzliya, has become Israel's center stage for the articulation of national policy by its most prominent leaders including the Israeli President, the Prime Minister, the IDF Chief of General Staff, and the leading contenders for high political office. Thus, Prime Minister Ariel Sharon chose to deliver his most important foreign policy speeches, now commonly known as "The Herzliya Addresses," at the Herzliya Conferences.
Herzliya Hebrew High School Herzliya Hebrew High School (, "ha-gimnasia ha-ivrit hertselia") was founded in 1905 in Jaffa and named Ha-Gimnasia Ha-Ivrit (The Hebrew High School). As the Hebrew name suggests, it is a Gymnasium school.
Herzog & de Meuron Herzog & de Meuron is a Basel-based Swiss architecture firm, founded in 1978 by Jacques Herzog (born 19 April 1950 in Basel) and Pierre de Meuron (born 8 May 1950 in Basel), its two main partners. The two architects' careers have run closely in parallel, with both attending the Swiss Federal Institute of Technology (ETH) in ZĂĽrich, Switzerland.
Herzog Zwei Herzog Zwei is a Mega Drive/Genesis game by Technosoft, published in 1989 (released in the United States in early 1990). It is one of the first real-time strategy games, predating the genre-popularizing Dune II.
Herzogenaurach Herzogenaurach is a town in Bavaria, Germany. It is located in the district of Erlangen-Höchstadt in Middle Franconia and is the birthplace of sporting goods giants Adidas and Puma and still the city of their headquarters.
Hesbaye Hesbaye (Latinized as Hesbania in Medieval documents, modern French Hesbaye, modern Dutch Haspengouw), the region around Namur on the Meuse (Maas), Belgium, near Liège, was an important fief in the northwestern marches of the Merovingian kingdom of Austrasia. It lay in "that region where the western foreland of the Eiffel meets the south-western fringe of silva carbonaria, a woodland frequently mentioned in Frankish historiography" The Merovingian county was consolidated from the old mark] Haspinga in which the final -ga element survives in the -gouw of the modern [[Limburgish name: Gau (plural Gaue) was an old Frankish term for a political division, equivalent in its etymology to the French pays.
Hesco bastion The HESCO barrier or HESCO bastion is a collapsible wire mesh container with a heavy duty plastic liner, used as a temporary barrier. One of the less heralded life- and labor-saving devices of war, it is used on nearly every US military base in Iraq and Afghanistan, and is named after the British company that developed it over a decade ago.
Hesder Hesder (in Hebrew: "arrangement"; or Yeshivat Hesder ישיבת הסדר) is an Israeli yeshiva program which combines advanced Talmudic studies with military service in the Israel Defense Forces. These yeshivot allow religious Jews to fulfill the ideal of full and active participation in the defense of the Israeli people, while still engaging in intense Torah study during their formative years.
Hesham Mohamed Hadayet Hesham Mohamed Hadayet (died July 4, 2002) was a Egyptian-American who on July 4, 2002, killed 2 people at Los Angeles International Airport in what the Federal Bureau of Investigation termed a terrorist attack. The two people killed were Israelis at the El Al ticket counter at the airport, one of whom was identified as a ticket agent (Victoria Hen).
Heshen Heshen (; other transliteration: Hoshen) (1750 - February 22, 1799), from the Manchu Niohuru clan, was a Manchu official of the Qing Dynasty. Born Shanbao (ĺ–„äżť), his given name was later changed into Heshen.
Hesher Suggested disambiguation: "Hesher" is also a slang term for a person, generally denoting a personal style associated with 1980's heavy metal fandom but carried into the present with ignorance or disregard for changing fashions. Possible origin: a portmanteau of "he", "she", and "her", commenting on the hesher's long hair.
Hesiocaeca methanicola Methane clathrate deposits in the ocean floor have been found to be inhabited by polychaete worms of the species Hesiocaeca methanicola. The worms colonize the methane ice and appear to survive by gleaning bacteria which in turn metabolize the clathrate.
Hesiod Hesiod (Hesiodos, ) was an early Greek poet and rhapsode, who presumably lived around 700 BC. Hesiod and Homer, whom Hesiod is often paired, have been considered the earliest Greek poets whose work has survived since at least Herodotus's time (Histories, 2.
Hesketh Pearson Edward Hesketh Gibbons Pearson (February 20 1887 - April 9 1964) was an English actor, theatre director and writer. He is known mainly for his popular biographies; they made him the leading British biographer of his time, in terms of commercial success.
Heslerton railway station Heslerton railway station was a minor railway station serving the villages of East Heslerton and West Heslerton on the York to Scarborough Line and was opened on 5th July 1845 by the York & North Midland Railway. It closed on 22nd September 1930.
Heslington Hall Heslington Hall is an English manor house located on the campus of the University of York, near the village of Heslington. Constructed in 1568 for Thomas Eynns, the Secretary and Keeper of the Seal to the Council of the North, the house has been rebuilt several times, once by the Victorian architect, Philip Charles Hardwick (1822-1892) and the latest major modification being in the early 20th century.
Hespèrion XX Hespèrion XX was an international early music ensemble formed in Basel, Switzerland in 1974 by Spanish musical director Jordi Savall. It has been superseded by a newer group lineup, calling themselves Hespèrion XXI.
Hespèrion XXI Hespèrion XXI is an international Early Music ensemble. The group was formed in Basel, Switzerland in 1974 as Hespèrion XX by Spanish musical director Jordi Savall (bowed string instruments, particularly the viola da gamba), Montserrat Figueras (soprano), Lorenzo Alpert (flute, percussion), and Hopkinson Smith (plucked string instruments).
Hespenbusch Hespenbusch is a farm, which belongs to the municipality of Grossenkneten. Karl Poggensee and the Hermann Oberth society (succeeded by the DAFRA, German work company for affairs of rocket) operated between 1952 and 1957 a launch site for small rockets with a maximum flight level of some kilometers, close to this farm.
Hesperaloe Hesperaloe is a genus of perennial yucca-like plants classified in the flowering plant family Agavaceae (Agave family). The plants have long, narrow leaves produced in a basal rosette and flowers borne on logn panicles or racemes.
Hesperides In Greek mythology, the Hesperides (Greek: ) are nymphs who tend a blissful garden in a far west corner of the world, located, according to various sources, in the Arcadian Mountains in Greece, near the Atlas mountains in Libya, or on a distant blessed island at the edge of the ocean. According to the Greek poet Stesichorus, in his poem the "song of Geryon", and the Greek geographer Strabo, in his book Geographika (volume III), the Hesperides are in Tartessos, a location placed to the south of Iberia (Spain).
Hesperides Hill Hesperides Hill (Halm Hesperides 'h&lm he-spe-'ri-des) is a ridge linked by a saddle of elevation 52 m with the northern slopes of Atlantic Club Ridge in eastern Livingston Island. The hill surmounts the South Bay coast N of Johnsons Dock to the SW, and Bulgarian Beach to the NE and is bounded to the SW by Sea Lion Glacier.
Hesperolinon Hesperolinon is a genus in the family Linaceae, whose common genus name is Dwarf flax. There are 13 known species within this genus of wildflowers, most of which are limited to serpentine soil habitats within California, USA.
Hesperolinon congestum Hesperolinon congestum, or Marin Dwarf Flax, is an annual herb, which is known to occur only in San Mateo, San Francisco and Marin County, California,Marinero Estates Environmental Impact Report, Earth Metrics Report 7665, city of Tiburon, Ca., May, 1989 USA.
Hesperosaurus Hesperosaurus (meaning "western lizard", from Classical Greek, ησπερο-/hespero- "western" and σαυρος/saurus "lizard") was an herbivorous dinosaur from the Kimmeridgian to Tithonian epochs of the Jurassic period (approximately 150 million years ago), whose fossils are found in the state of Wyoming in the United States of America. It is from an older part of the Morrison Formation, and so a little older than other Morrison Stegosaurs.
Hesperoyucca Hesperoyucca is a small genus of three species of flowering plants in the family Agavaceae, closely related to and recently split from Yucca, but distinct in having dehiscent fruit and a scape more than 2.5 cm diameter with reflexed (not erect) bracts.
Hesquiaht First Nation The Hesquiaht First Nation (pronounced Hesh-kwit or Hes-kwee-at) is a Nuu-chah-nulth First Nations government based on the west coast of Vancouver Island in British Columbia, Canada. It is a member of the Nuu-chah-nulth Tribal Council.
Hess Educational Organization Hess Educational Organization (or Hess for short) is the single largest private provider of English education in the Republic of China (ROC) and has an estimated 60,000 students currently enrolled. Founded in 1983 by Joseph Chu and Karen Hess, it has become a large and successful business with schools across the island.
Hess's law Hess' Law is a law of physical chemistry named for Germain Hess's expansion of the Hess Cycle, used to predict the enthalpy change and conservation of energy (denoted as state function ΔH) regardless of the path through which, it is to be determined.
Hessdalen Hessdalen is a 15 km long valley in Norway, located approximately 120 kilometres south of Trondheim city and approximately 35 km north of Røros mining town. It is a part of Holtålen municipality in Sør-Trøndelag county.
Hessdalen AMS Hessdalen AMS (abbreviation for Hessdalen Automatic Measurement Station ) is an automatically working observation station for registering Hessdalen lights. It has been in service since August 7 1998 and is equipped with a magnetometer, two black and white TV cameras and one colour TV camera.
Hesse Hesse (German: Hessen) is a state of Germany with an area of 21,110 km² and just over six million inhabitants. The capital city of Hesse is Wiesbaden (Darmstadt and Kassel until 1945) while its economic centre and largest city is nearby Frankfurt am Main and the surrounding Rhine Main Area.
Hesse-Kassel Hesse-Kassel (Hessen-Kassel in German) was a German principality that came into existence when the Landgraviate of Hesse was divided in 1568 upon the death of Landgrave Philip I of Hesse. His eldest son Wilhelm IV inherited the northern half and the capital of Kassel.
Hessel de Vries Hessel de Vries, Dutch physicist at the University of Groningen, furthered the detection methods and applications of radiocarbon dating to a variety of sciences. He has been called "the unsung hero of radiocarbon dating" by Willis.
Hessenberg matrix In linear algebra, a Hessenberg matrix is one that is "almost" triangular. To be exact, an upper Hessenberg matrix has zero entries below the first subdiagonal, and a lower Hessenberg matrix has zero entries above the first superdiagonal.
Hessia Hessia is an old anglicizing of the German word "Hessen", still found in mentions of the Hessian troops fighting as mercenaries on the side of George III in the American Revolution, and in the name of the Hessian fly that came along on their boats. French dominance in the world of 19th century diplomacy made it more usual to spell many German place names in French.
Hessian (boot) Hessian (from Hesse in Germany)refers to a style of boot that became popular in the 18th century. Initially used as standard issue footwear for the military, especially officers, it would become widely worn by civilians as well.
Hessian (social group) Hessian is an American slang term for a type of youth generally associated with long hair, heavy metal music, and loud cars, and being an outcast from mainstream culture. The term is commonly used in the Midwest and Western United States .
Hessian (web service protocol) Hessian is a binary web service protocol that makes web services usable without requiring a large framework, and without learning yet another alphabet soup of protocols. Because it is a binary protocol, it is well-suited to sending binary data without any need to extend the protocol with attachments.
Hessian crucibles From the time of the middle ages, alchemists used medians that could withstand strong regeants and high temperatures as their mixing vessels, otherwise known as crucibles. The Hesse region of Germany was world famous at producing these mixing vessels and hence became a very popular choice amongst the alchemist crowd.
Hessian fly The hessian fly or barley midge, Mayetiola destructor, is a species of fly that is a significant pest of cereal crops including wheat, barley and rye. Though a native of Asia it was transported into Europe and later into North America, supposedly in the straw bedding of Hessian troops during the American Revolution (1775–83).
Hessle Hessle (pronounced "Hezzle") is a town in the East Riding of Yorkshire, England, situated 5 miles west of Kingston upon Hull city centre. It is part of Hull's built-up area but not within the city boundaries.
Hessler Street Fair The Hessler Street Fair is an annual arts and music festival held each May on Hessler Road, in the University Circle neighborhood of Cleveland, Ohio, United States. The first festival took place in 1969 and was held each year until 1984; following a ten-year hiatus festivals resumed in 1995.
Hessonite Hessonite or Cinnamon Stone is a variety of garnet, belonging to the calcium aluminium grossular type, Ca3Al2Si3O12. The name is from the Greek hēssōn, inferior, in allusion to its lower hardness and density than most other garnets.
Hesston College Hesston College, a two-year college founded in 1909, is located in Hesston, Kansas, 35 miles north of Wichita. Founded in 1909, the college has an enrollment of about 450 students who typically come from about 30 states and 30 other countries including Canada.
Hest Bank Hest Bank is a village in north-western Lancashire, England, the boundaries of which include the coastline, from a western shoreline of salt-flats that adjoin the northern extremities of Morecambe's Victorian era Promenade, to a less clearly defined boundary in the east with the village of Slyne, which dates from Anglo-Saxon times.
Hester Prynne Hester Prynne, the young protagonist of Nathaniel Hawthorne's novel The Scarlet Letter, is a woman condemned by her Puritan neighbors. In various film adaptations of the novel, she has been portrayed by actresses such as Lillian Gish, Meg Foster, and Demi Moore.
Hester Street (Manhattan) Hester Street is a street in the Lower East Side of the New York City borough of Manhattan. The street stretches from Essex Street to Centre Street, with a discontinuity between Chrystie Street and Forsyth Street for Sara Delano Roosevelt Park.
Hester Thrale Hester Lynch Thrale (born Hester Lynch Salusbury and after her second marriage, Hester Lynch Piozzi ) (16 January 1741 - May 2, 1821) (although she celebrated her own birthday on 27 January, which was 16 January O.S.
Hesternal tense Hesternal tense is a group of grammatical tenses that are defined relative to the previous day. Pre-hesternal past tense refers to events happening previous to yesterday, whereas hesternal past tense refers to events happening yesterday.
Hestia In Greek mythology, virginal Hestia (ancient Greek ) is the goddess of the hearth, of the right ordering of domesticity and the family, who received the first offering at every sacrifice in the household. In the public domain the hearth of the prytaneum or town hall functioned as her official sanctuary.
Heston and Isleworth (UK Parliament constituency) Heston and Isleworth was a parliamentary constituency centred on the Heston and Isleworth districts of West London. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom.
Heswall Heswall is a town on the Wirral Peninsula, Merseyside, England. Before Local Government reorganisation in 1974, it was part of the county of Cheshire, but has since been part of the Metropolitan Borough of Wirral.
Hesy-Ra Hesy-Ra was an official physician and scribe who lived during the Third dynasty of Egypt, served under the pharaoh Djoser, and was laid in an elaborate tomb at Saqqara. He bore titles such as "Chief of Dentists and Physicians" and "Chief of the King's Scribes.
Hesychasm Hesychasm (Greek hesychasmos, from hesychia, "stillness, rest, quiet, silence") is an eremitic tradition of prayer in Eastern Orthodox Christianity practised (Gk: hesychazo: "to keep stillness") by the Hesychast (Gr. hesychastes).
Hesychius of Alexandria Hesychius of Alexandria, a grammarian of Alexandria, (probably flourished 5th century CE) compiled the richest lexicon of unusual and obscure Greek words that has survived (in a single 15th century manuscript). The work includes approximately 51,000 entries, a copious list of peculiar words, forms and phrases, with an explanation of their meaning, and often with a reference to the author who used them or to the district of Greece where they were current.
Het Loo The former royal residence Het Loo near Apeldoorn, Netherlands, was built starting in 1684 for the Stadtholder Willem, known to English-language readers as William III of Orange and his consort Mary II Stuart, who became King and Queen of England in 1689.
Het Scheur [image] of the northwest part of the [[Rhine-Meuse delta showing river Het Scheur (s).]]River Het Scheur is a branch of the Rhine-Meuse delta that flows west from the confluence of the Oude Maas and Nieuwe Maas branches past the towns of Rozenburg and Maassluis.
Het Schip Het Schip ("The Ship") is an apartment building in the Spaarndammerbuurt district of Amsterdam, built in the architectural style of the Amsterdam School. It is the most important example of this style of architecture.
Het Volk (political party) Het Volk was a Transvaal political party, established in 1905 under the leadership of Louis Botha and his deputy Jan Smuts. Upon the creation of the Union of South Africa in May 1910, it merged with Afrikaner Bond and the Orangia Unie, the dominant political parties of the Cape Colony and Orange River Colony (formerly the Orange Free State) respectively, creating the pan-Union South African Party.
Het Volkske Het Volkske (the little 'people'), is the weekly children's supplement of the Flemish newspaper het volk ('the people'). The supplement appears every Wednesday as this is the day schools in Flanders close at noon (as opposed to 4 p.
Het Woeden der Gehele Wereld Het Woeden der Gehele Wereld is a 1993 Dutch novel by Maarten 't Hart. The title translates as "The fury/rage/raging of the whole world" and is derived from a song with lyrics by René-François Sully-Prudhomme, set to music by Gabriel Fauré.
Hetepheres II Hetepheres II must have been one of the longest-lived members of the royal family of the Fourth dynasty of Egypt. She was a daughter of Khufu, probably born during the reign of her grandfather Sneferu or during the early years of her father's reign.
Heteractis magnifica Heteractis magnifica (known variously as magnificent sea anemone or Ritteri anemone) is a species of sea anemone that lives in the Indo-Pacific area, and can grow up to 1 metre (3 feet) in diameter in the wild. It can be kept in aquaria but is considered one of the most challenging species to keep healthy.
Heterarchy A heterarchy is a network of elements sharing common goals in which each element shares the same "horizontal" position of power and authority, each having an equal vote. A heterarchy may be independent or at some level in a hierarchy.
Hetero atom In organic chemistry a hetero atom refers to nitrogen, oxygen, sulfur, and the halogens. The hetero (means different) atoms are in one distinct group set aside from carbon and hydrogen that make up organic chemistry.
Hetero Drugs Hetero Drugs is an Indian Pharmaceutical Company which was recently awarded licence to make TamifluSwiss firm Roche has licensed Hetero Drugs an Indian company to make a generic version of its anti-flu treatment Tamiflu for India and other developing countries.The drug is widely seen as the most promising treatment for combating any future pandemic of bird flu in humans.
Heteroatom In the nomenclature of organic chemistry, a heteroatom (from Ancient Greek heteros, different, + atomos) is any atom that is not carbon or hydrogen. It is typically, but not exclusively, nitrogen, oxygen, sulfur, phosphorus, boron, chlorine, bromine, or iodine.
Heterobathmiidae Heterobathmiidae is a family of insects in the Lepidoptera order restricted to southern South America. The adults of these very primitive moths are diurnal and the larvae leaf-mining on Nothofagus or Southern Beech.
Heteroclinic bifurcation In mathematics, particularly dynamical systems, a heteroclinic bifurcation is a global bifurcation involving a heteroclinic cycle. Heteroclinic bifurcations come in two types, resonance bifurcations, and transverse bifurcations.
Heteroclinic network In mathematics, a heteroclinic network is an invariant set in the phase space of a dynamical system. It can be thought of loosely as the union of more than one heteroclinic cycle, although there are further constraints requiring the network to be transitive.
Heteroclinic orbit In mathematics, in the phase portrait of a dynamical system, a heteroclinic orbit (sometimes called a heteroclinic connection) is a path in phase space which joins two different equilibrium points. If the equilibrium points at the start and end of the orbit are the same, the orbit is a homoclinic orbit.
Heterocyclic compound Heterocyclic compounds are organic compounds that contain a ring structure containing atoms in addition to carbon, such as sulfur, oxygen or nitrogen, as part of the ring. They may be either simple aromatic rings or non-aromatic rings.
Heterocyst Heterocysts are specialized nitrogen-fixing cells formed by some filamentous cyanobacteria, such as Nostoc punctiforme, Cylindrospermum stagnale and Anabaena sperica, during nitrogen starvation. They fix nitrogen from dinitrogen (N2) in the air using the enzyme nitrogenase, in order to provide the cells in the filament with nitrogen for biosynthesis.
Heterodont The anatomical term heterodont (from Greek, meaning 'different teeth') refers to animals which possess more than a single tooth morphology. For example, members of the Mammalia and Synapsida generally possess incisors, canines ('eyeteeth'), premolars, and molars.
Heterodontosauridae Heterodontosauridae ("different-toothed lizards") is a family of early ornithischian dinosaurs that have often been considered basal ornithopods, although recent studies suggest they may have been more closely related to marginocephalians. Although their fossils are rare, they lived around the globe beginning in the Late Triassic Period and may have persisted into the Cretaceous.
Heterodontosauriformes Heterodontosauriformes are a group of herbivorous dinosaurs within the order Ornithischia. The rank was created by Xu et al in 2006 to group the suborder Marginocephalia with the family Heterodontosauridae (previously classified as ornithopods), after the discovery of Yinlong revealed the two to be closely related.

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