Encyclopedia

Hyla gratiosa The barking tree frog (Hyla gratiosa) is a stout tree frog, 5 to 7 centimeters long, and variable in color but easily recognizable due to the characteristic dark round markings on its dorsum. Individuals may be bright or dull green, brown, yellowish, or gray in color.
Hyla chrysoscelis The Cope's Grey Tree Frog (Hyla chrysoscelis) is a species of tree frog which is found in the United States. It is almost indistinguishable from the Grey Tree Frog, Hyla versicolor, and shares much of its geographic range.
Hylaeus (genus) Hylaeus is a large (>500 species) and diverse cosmopolitan genus within the bee family Colletidae, consisting of generally small, black and yellow/white wasp-like species. The resemblance to wasps is enhanced by the absence of a scopa, which is atypical among bees; Hylaeus carry pollen in the crop, rather than externally, and regurgitate it into the cell where it will be used as larval food.
HylaFAX HylaFAX is the leading fax server for Unix-like computer systems. It uses a client-server design and supports the sending and receiving of faxes as well as text pages, on any scale from low to very high volumes, if necessary making use of large numbers of modems.
Hylas In Greek mythology, Hylas (Greek: Ύλας) was the son of King Theiodamas of the Dryopians. Other sources such as Ovid state that Hylas was a son of Heracles and the nymph Melite or by making love to the wife of Theiodamus in an adulterous affair that caused the war.
Hyles-Anderson College Hyles-Anderson College is an unaccredited Bible college in unincorporated St. John Township, Lake County, Indiana,Spivak, Diane Hyles' birthplace to be rebuilt on campus: Texas home of college co-founder will rest at Hyles-Anderson Northwest Indiana Times 7 November 2001 with a postal address at 8400 Burr Street, Crown Point, Indiana.
Hylian (language) Hylian is an ancient language used in Hyrule, a place in Legend of Zelda games such as Legend of Zelda: The Wind Waker and Legend of Zelda: Ocarina of Time. The characters are composed mostly of squarelike symbols and dots with a small amount of curved or diagonal lines.
Hylocereus Hylocereus is a genus of cacti, often referred to as nightblooming cactus (though the term is also used for the genus Selenicereus). Several species have large edible fruits, which are known as pitaya or dragonfruits.
Hylocereus costaricensis Hylocereus costaricensis is a cactus species native to Cental America and northwestern South America. The species is grown commercially for its fruit, but is also an impressive ornamental vine with huge flowers.
Hylocereus megalanthus Hylocereus megalanthus is a cactus species native to northern South America. The species is grown commercially for its fruit, but is also an impressive ornamental vine with perhaps the largest flowers of all cacti.
Hylomorphism Hylomorphism (Greek υλο- hylo-, "wood, matter" + -morphism < Greek -μορφη, morph, "form") is a philosophical concept that highlights the significance of matter in the composition of being, regarding matter to be as essential to a being as its form. In laymen's terms, hylomorphism is the view that a substance is defined by a combination of the matter from which it is made and the form which that matter takes.
Hylopathism Hylopathism, in philosophy, can mean either the belief that some or all matter is sentient or the belief that properties of matter in general give rise to the subjective experience. It is generally opposed to the assertion that consciousness results exclusively from properties of specific types of matter, e.
Hyloscirtus Hyloscirtus is a genus of frogs in the Hylidae family. This genus was resurrected in 2005 following a major revision of the Hylidae family 28 species that were previously placed in the Hyla] genus were moved to this genus.
Hyman Abrams Hyman Abrams was a Boston mobster and high ranking member of Charles "King" Solomon during Prohibition. He and other members of Solomon's organization took over Boston's criminal operations for themselves following Solomon's murder in 1933.
Hyman Amberg Herman "Hyman" Amberg (c. 1902 - November 3, 1926) was a New York mobster who, with his brothers Joseph and Louis "Pretty" Amberg, formed one of the prominent criminal gangs during Prohibition.
Hyman Isaac Long Hyman Isaac Long was originally from the island of Jamaica in the West Indies and is listed in the first New York City directory (1786) as an early Jewish physician of that city. He was later involved in Masonic activities in New York, Virginia and South Carolina.
Hyman Kaplan Hyman Kaplan, or H*Y*M*A*N K*A*P*L*A*N as he habitually signs himself, is a fictional character in a series of humorous stories by Leo Rosten, under the pseudonym "Leonard Q. Ross", which were originally published in The New Yorker in the 1930s and later collected into two books, The Education of H*Y*M*A*N K*A*P*L*A*N and The Return of H*Y*M*A*N K*A*P*L*A*N.
Hyman Roth Hyman Roth (1892-1959) is a fictional character (based heavily on real-life gangster Meyer Lansky), who plays a pivotal role in the film The Godfather Part II. He was portrayed by Lee Strasberg, a well-respected acting teacher, in one of his few screen roles.
Hyman Spotnitz Hyman Spotnitz (1908-) is an American psychoanalyst and psychiatrist who pioneered an approach to working psychoanalytically with schizophrenics in the 1950s called modern psychoanalysis. He also was one of the pioneers of group therapy.
Hymen The hymen (from the Greek word for membrane; also called maidenhead or in slang cherry; also used as a name for the Greek God of marriage and weddings, Hymenaeus) is a fold of mucous membrane which surrounds or partially covers the external vaginal opening. It forms part of the vulva, or external genitalia.
Hymen Records Hymen Records is an imprint of the Ant-Zen record label, founded in 1997. Hymen mainly releases material of a technoid, power noise/rhythmic noise, dark ambient, IDM, breakcore or similar experimental electronic nature.
Hymenaei Hymenaei, or The Masgue of Hymen, was a masque written by Ben Jonson for the marriage of Robert Devereux, 3rd Earl of Essex, and Lady Frances Howard, daughter of the Earl of Suffolk, and performed on their wedding day, Jan. 5, 1606.
Hymenaios In Greek mythology, Hymenaios (also Hymenaeus, Hymenaues, or Hymen; Ancient Greek: ) was a god of marriage ceremonies, inspiring feasts and song. It is also a genre of Greek lyric poetry sung during the procession of the bride to the groom's house in which the god is addressed, in contrast with epithalamia), which were sung at the nuptial threshold.
Hymenium The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in others some cells develop into sterile cells called cystidia (basidiomycetes) or paraphyses (ascomycetes).
Hymenoepimecis argyraphaga Hymenoepimecis argyraphaga is a parasitoid wasp whose host is the spider Plesiometa argyra. The wasp is unique in modifying the spider's web building behavior to make an X-shaped web designed to support the wasp's cocoon without breaking in the rain.
Hymenochaetales The Hymenochaetales is an order of basidiomycete fungi. This group contains a number of corticioid fungi, polypores, such as Inotus and Phelinus, as well as several agaric species, such as Rickenella and Loreleia.
Hymenomycotina The subdivision Hymenomycotina (Hymenomycetes) is one of three taxa of the fungal division Basidiomycota (fungi bearing spores on basidia). The Hymenomycetes contain some 20,000 species, and about 98% of these are Homobasidiomycetes: most of the fungi known as mushrooms, including the bracket fungi and puffballs.
Hymenophyllaceae The Hymenophyllaceae (filmy ferns and bristle ferns) is a family of seven genera and over 600 species of ferns, with a subcosmopolitan distribution, but generally restricted to very damp places or to locations where they are wetted by spray from waterfalls or springs.
Hymenoptera Hymenoptera is one of the larger orders of insects, comprising the sawflies, wasps, bees, and ants. The name refers to the membranous wings of the insects, and is derived from the Ancient Greek [(humẽn): membrane and πτερόν] (pteron): wing.
Hymenopus coronatus Hymenopus coronatus (known by a variety of common names including Malaysian orchid mantis, Malaysian orchid praying mantis, pink orchid mantis and orchid mantis) is a praying mantis from Malaysian, Indonesian, and Sumatran rain forests. The mantises thrive in humid, warm areas of south Asian rain forests.
Hymenotomy A Hymenotomy is a minor medical procedure involving the surgical removal or opening of the hymen. It is done to treat imperforate hymen or other situations where the hymen is unusually thick or rigid in order to allow normal menstruation or sexual intercourse.
Hymers College Hymers College is a co-educational independent school located on the site of the old Botanic Gardens of Hull, Yorkshire, England. It was established in 1893 as a boys' school, but expanded to include girls from the 1970s onwards.
Hymn A hymn is a type of song, usually religious, specifically written for the purpose of praise, adoration or prayer, and typically addressed to a god or other religiously significant figure. The word hymn derives from Greek hymnos "a song of praise", which itself is derived from the Proto-Indo-European stem *sh2em- "to sing" and is related to Hittite "he sings" and Sanskrit sāman "song".
Hymn (software) hymn (Hear Your Music aNywhere) is a piece of computer software, and the successor to the PlayFair program. The purpose of hymn, according to its author (who is currently anonymous for fear of legal proceedings), is to allow people to exercise their fair use rights under United States copyright law.
Hymn (song) "Hymn" was a 1982 hit single from Ultravox's 6th studio album Quartet (4th studio album recorded with singer Midge Ure) that reached #11 on the UK Top 40 singles chart. The song was written by Warren Cann, Chris Cross, Billy Currie and Midge Ure and produced by George Martin.
Hymn of the Nations Originally titled Arturo Toscanini, Hymn of the Nations (1944), a film directed by Alexander Hammid, features a curious, patriotic work for tenor soloist, chorus, and orchestra, composed by Italian opera composer Giuseppe Verdi in the early-1860s. For this musical work, Verdi utilized the national anthems of several European nations.
Hymn to Freedom The Hymn to Freedom ( Imnos is tin Eleftherian) is a poem written by Dionýsios Solomós in 1823 that consists of 158 stanzas, set to music by Nikolaos Mantzaros. In 1865, the first two stanzas officially became the national anthem of Greece and later also that of the Republic of Cyprus.
Hymne Chérifien The Hymne Chérifien, has been the anthem of the Kingdom of Morocco even before the country gained its independence in 1956. Its music was written by Léo Morgan, and the final lyrics by Ali Squalli Houssaini in 1970.
Hymns and Psalms Hymns and Psalms is the hymn book of the Methodist Church. The hymnbook was first published in 1983, to replace 'The Methodist Hymnbook', which was published soon after the unification of the Methodist Church in 1933.
Hymns to Mary Hymns to Mary/Marian Hymns are Christian devotional songs focused on Mary, the Mother of Jesus. They are usually used in devotional services, particularly by the Roman Catholic Church and in the month of May/May crowning
Hymnus Eucharisticus The Hymnus Eucharisticus is a traditional hymn sung by the Magdalen College choir (boy choristers from Magdalen College School nearby) at Oxford, England. The hymn is sung from the gallery of the college's Great Hall (the dining room) during important college occasions.
Hymy Hymy ("Smile") is a Finnish magazine, which was launched in 1959 by publisher Urpo Lahtinen and was named after his wife Hymy Lahtinen. In the 1960s and 1970s Hymy became a success with sensationalist stories containing lots of sex and gossip about Finnish celebrities, often verging on the invasion of privacy.
Hyndland railway station Hyndland railway station is a railway station in Hyndland in Glasgow, Scotland. Accessible from the surrounding areas of Hyndland, Broomhill and Hughenden, there are regular services to Glasgow Central and Glasgow Queen St.
Hyndland Secondary School Hyndland Secondary School is a non-denominational state school in the Hyndland area of Glasgow, Scotland. Situated on Lauderdale Gardens in the city's fashionable West End, the School provides secondary education primarily for children from the feeder primary schools of Hyndland, Broomhill, Thornwood and Whiteinch, although there are many children from other areas of the city, particularly Scotstoun Primary.
Hyndluljóð Hyndluljóð or Lay of Hyndla is an Old Norse poem often considered a part of the Poetic Edda. It is only preserved in its entirety in Flateyjarbók but some stanzas are also quoted in the Prose Edda where they are said to come from Völuspá hin skamma.
Hynerpeton Hynerpeton (hi-ner-pet-ton, meaning "Hyner's creeper") was a basal carnivorous tetrapod that lived in the Devonian period around 400 million years ago. Like many primitive tetrapods, it is sometimes referred to as an "amphibian", though it is not a true member of the class Amphibia.
Hyoglossus The Hyoglossus, thin and quadrilateral, arises from the side of the body and from the whole length of the greater cornu of the hyoid bone, and passes almost vertically upward to enter the side of the tongue, between the Styloglossus and Longitudinalis inferior.
Hyoho Niten Ichi-ryu Hyōhō Niten Ichi-ryū is a style of classical Japanese swordsmanship conceived by the legendary warrior Miyamoto Musashi. Hyōhō Niten Ichi-ryū is mainly known for the two-sword, katana and wakizashi, kenjutsu techniques Musashi called niten'ichi (二天一, "two heavens as one") or nitōichi (二刀一, "two swords as one").
Hyoscine-pentothal Hyoscine-pentothal is a fictional, pain-inducing drug that appears in the television series 24. Henderson, a terrorist captured by CTU, is tortured by a CTU agent who repeatedly injects him with the drug several times.
Hyoshigi Hyoshigi (Japanese:拍子木) is a simple Japanese musical instrument, this consists of two pieces of hardwood or bamboo that are connected by a thin ornamental rope. Hyoshigi are used in traditional theaters in Japan to announce the beginning of a performance.
Hyosung Constructions Hyosung Construction (Hangul: 효성건설 Hanja: 曉星建設) is a Korean construction company founded and established in 1970 as previous name is Daedong Constructions Co, Ltd. (hangul: 대동건설), and company sold as Hyosung in 1977.
Hyotaro Kimura Hyotaro Kimura (Kimura HyĹŤtarĹŤ, sometimes spelled Kimura Heitaro) was a Japanese army officer who played a major, although comparatively little-known role in Japanese planning and policy before and during World War II.
Hyote The hyote is a cryptozoological animal that was repeatedly sighted in Baltimore County, Maryland, United States during the summer of 2004. Based on eyewitness reports and a videotape of the creature captured by rigging a motion detector to a camera, some locals speculated that it was an as-yet undiscovered species.
Hypaethros Hypaethros, or hypaethral opening is the Greek term quoted by Vitruvius (iii. 2) for the opening in the middle of the roof of decastyle temples, of which there was no example in Rome, but one in Athens in the temple of Jupiter Olympius, which is octostyle.
Hypalon Hypalon is a trademark for chlorosulfonated polyethylene (CSPE) synthetic rubber (CSM) noted for its resistance to chemicals, temperature extremes, and ultraviolet light. It is a product of DuPont Performance Elastomers.
Hypanthium A hypanthium is a bowl-shaped part of a flower consisting of the bottoms of the sepals, petals, and stamens stuck together. It is present in all members of the Rosaceae; in the rose it is so deep, with such a narrow top, that it looks like an inferior ovary (the ovary in Rosoideae, which consists of numerous carpels, is in fact superior).
HypaSpace Weekly HypaSpace Weekly, HypaSpace Daily or HypaSpace as it's widely known as, is a weekly entertainment news program about the world of science fiction and fantasy, created by and shown on SPACE: The Imagination Station.
Hypatian Codex The Hypatian Codex (Hypatian Chronicle, Ipatiev Chronicle, ) is a compendium of three chronicles: Primary Chronicle, Kiev Chronicle, and Halych-Volhynian Chronicle. It is the second oldest manuscript of the Primary Chronicle, after the Laurentian Codex.
Hypaxial Trunk muscles can be broadly divided into hypaxial muscle, which lie ventral to the transverse processes of the vertebrae and epaxial muscles, which lie dorsal to the transverse process of the vertebrae. Both groups of muscle include the vertebral, respiratory and abdominal muscles.
Hypæpa Hypæpa or Hypaepa (Ύπαιπα or Ύπηπα) was a city in Lydia, on the southern slope of the Tmolus, looking towards the plain of Caystrus. The goddess Artemis Persica was worshipped there, and its women were noted for their beauty and their skill in dancing.
Hype cycle A Hype cycle is a graphic representation of the maturity, adoption and business application of specific technologies. The term was coined by Gartner, an analyst/research house, based in the United States, that provides opinions, advice and data on the global information technology industry.
Hype City Soundtrack Hype City Soundtrack is the third and final named cassette of music which has thusfar been discovered by Neutral Milk Hotel, which, at this point, was merely an outlet for Jeff Mangum's songwriting. Again, it was self-released by Mangum, for the enjoyment of himself and his friends, which was common among Elephant 6 luminaries of the time.
Hype Williams Harold "Hype" Williams (born 1970 in Queens, New York) is an American music video and film director of African-American and Honduran descent. The son of working-class parents, he grew up wanting to be a painter.
Hyper (magazine) Hyper is a multi-platform Australian video game magazine. Australia's longest running gaming magazine, it has been in publication since 1993, and was released the same month as the better known UK magazine Edge.
Hyper Athlete Hyper Athlete is an update of Konami's Track & Field series, in which up to four players compete in eleven different Olympic events. All six events from the first game, 1983's "Track and Field", are included; but tellingly, only three events (swimming, pole vault and triple jump) are taken from the less accomplished sequel, Hyper Sports.
Hyper engine The hyper engine was a hypothetical aircraft engine design, an engine that would be able to deliver 1 horsepower per cubic inch (46 kW/L) of engine displacement. The term was generally used only in the United States, where the Army Air Corps funded development of several hyper engines of about 1200 cubic inches (20 L) in the 1930s, hoping the engine's small size would lead to better streamlining and improved range.
Hyper IgM syndrome The hyper-IgM syndrome is actually a family of genetic immunodeficiencies, as compared to the Acquired Immunodeficiency Syndrome (AIDS). In all types, the level of immunoglobulin M (IgM) is elevated or relatively normal.
Hyper Island Hyper Island is a digital media school established in Karlskrona, Sweden, in April 1996, widely known for its graphic design students and partly funded by the new media industry. It is located on a UNESCO World Heritage Site.
Hyper Music/Feeling Good "Hyper Music" and "Feeling Good" are songs performed by the English rock band Muse and are featured on their second album, Origin of Symmetry. The two songs were later released as a double A-sided single from that album on November 19 2001 (see 2001 in British music).
Hyper Static Union Hyper Static Union is a Christian rock band formed in Camas, Washington (a suburb of Portland, Oregon). The band's first official/studio album was released May 9, 2006, and was produced by Mac Powell of Third Day.
Hyper-Calvinism Hyper-Calvinism is a pejorative for a theological position that historically arose from within the Calvinist tradition among the early English Particular Baptists in the mid 1700s. It can be seen in the teachings of men like Joseph Hussey (d.
Hyper-encryption Hyper-encryption is a form of encryption invented by Michael Rabin which uses a high-bandwidth source of public random bits, together with a secret key that is shared by only the sender and recipient(s) of the message. It uses the assumptions of Ueli Maurer's bounded-storage model as the basis of its secrecy.
Hyper-Gyp Hyper-Gyp also known as Speed-Pyke is a humorous patois mockery of the Irish dialect used amongst travellers in the UK, more commonly known as Pikeys. It has long been used to mock the fast and almost coded Irish dialect they speak.
Hyper-IgE syndrome Hyper IgE syndrome is a heterogeneous group of disorders characterized by recurrent staphylococcal infections, unusual eczema-like skin rashes, severe lung infections that result in pneumatoceles (balloon-like lesions that may be filled with air or pus or scar tissue) and very high concentrations of serum IgE. Some patients have an autosomal dominant form of the disease; these patients have problems with their bones including recurrent fractures and scoliosis.
Hyper-Interactive Teaching Technology Hyper-Interactive Teaching Technology or H-ITT is a form of technology used primarily to interact between the students and teachers. Students generally are given an H-ITT transmitter, which is similar to a remote control, which allows them to answer questions in poll or quiz form.
Hyper-On Experience Hyper-On Experience is a UK breakbeat hardcore and drum and bass duo made up of Alex Banks (of EZ Rollers fame) and Danny Demierre (aka Flytronix). Their releases appeared on Moving Shadow, but several tracks they remixed were releases on other record labels.
Hyper-threading Hyper-threading, officially called Hyper-Threading Technology (HTT), is Intel's trademark for their implementation of the simultaneous multithreading technology on the Pentium 4 microarchitecture. It is a more advanced form of Super-threading that debuted on the Intel Xeon processors and was later added to Pentium 4 processors.
Hyperactivity Hyperactivity can be described as a state in which a person is abnormally easily excitable and exuberant. Strong emotional reactions and a very short span of attention are also typical for a hyperactive person.
Hyperaemia Hyperaemia describes the increase of blood flow to different tissues in the body. It can have medical implications, but is also a regulatory response, allowing change in blood supply to different tissues through AmE hyperemia) is the medical condition in which blood congests in a part of the body.
Hyperaminoacidemia Hyperaminoacidemia is an excess of amino acids in the bloodstream (the amino acid pool) which some researchers believe can lead to an increase in both protein synthesis and protein breakdown through protein oxidation, with an overall positive nitrogen balance. A positive nitrogen balance indicating more construction of lean tissue than destruction, leading to an increase in lean mass in the body.
Hyperbass flute The hyperbass flute (sometimes spelled hyper-bass flute) is the largest and lowest instrument in the flute family. It is pitched in C, four octaves below the concert flute (and three octaves below the bass flute, two octaves below the contrabass flute, and one octave below the double contrabass flute).
Hyperbaton Hyperbaton is a figure of speech that uses deliberate and dramatic departure from standard syntax (word order) for emphasis or poetic effect. This term is sometimes used as a synonym for anastrophe, but is more properly used as a general term for figures of disorder, of which anastrophe, parenthesis, and apposition are more specific types.
Hyperbola In mathematics, a hyperbola (Greek literally 'overshooting' or 'excess') is a type of conic section defined as the intersection between a right circular conical surface and a plane which cuts through both halves of the cone.
Hyperbolic 3-manifold A hyperbolic 3-manifold is a 3-manifold equipped with a complete Riemannian metric of constant sectional curvature -1. In other words, it is the quotient of three-dimensional hyperbolic space by a subgroup of hyperbolic isometries acting freely and properly discontinuously.
Hyperbolic discounting In behavioral economics, hyperbolic discounting refers to the empirical finding that people generally prefer smaller, sooner payoffs to larger, later payoffs when the smaller payoffs would be imminent; when the same payoffs are distant in time, people tend to prefer the larger, even though the time lag from the smaller to the larger would be the same as before. The phenomenon of hyperbolic discounting is implicit in Richard Herrnstein's "matching law," the discovery that most subjects allocate their time or effort between two non-exclusive, ongoing sources of reward (concurrent variable interval schedules) in direct proportion to the rate and size of rewards from the two sources, and in inverse porportion to their delays.
Hyperbolic distribution The hyperbolic distribution is a continuous probability distribution that is characterized by the fact that the logarithm of the probability density function is a hyperbola. Thus the distribution decreases exponentially, which is more slowly than the normal distribution.
Hyperbolic Dehn surgery In mathematics, hyperbolic Dehn surgery refers to an operation by which one can obtain further hyperbolic 3-manifolds from a given cusped hyperbolic 3-manifold. Hyperbolic Dehn surgery exists only in dimension three and is the main reason which distinguishes hyperbolic geometry in three dimensions from other dimensions.
Hyperbolic function In mathematics, the hyperbolic functions are analogs of the ordinary trigonometric, or circular, functions. The basic hyperbolic functions are the hyperbolic sine "sinh", and the hyperbolic cosine "cosh", from which are derived the hyperbolic tangent "tanh", etc.
Hyperbolic geometry In mathematics, Hyperbolic geometry is a non-Euclidean geometry, meaning that the parallel postulate of Euclidean geometry is rejected. The parallel postulate in Euclidean geometry states (for two dimensions) that given a line l and a point P not on l, there is exactly one line through P that does not intersect l.
Hyperbolic group In group theory, a hyperbolic group, also called negatively curved group, word-hyperbolic group, Gromov-hyperbolic group, delta-hyperbolic group, is a finitely generated group equipped with a word metric satisfying certain properties characteristic of hyperbolic geometry.
Hyperbolic motion In geometry, a hyperbolic motion is a mapping of a model of hyperbolic geometry that preserves the distance measure in the model. Such a mapping is analogous to congruences of Euclidean geometry which are compositions of rotations and translations.
Hyperbolic motion (relativity) Hyperbolic motion is the motion of an object with constant proper acceleration in special relativity. It is called hyperbolic motion because the equation describing the path of the object through spacetime is a hyperbola, as can be seen when graphed on a Minkowski diagram.
Hyperbolic quaternion In mathematics, a hyperbolic quaternion is a mathematical concept first suggested by Alexander MacFarlane in 1891 in a speech to the American Association for the Advancement of Science. The idea was criticized for its failure to conform to associativity of multiplication.
Hyperbolic secant distribution In probability theory and statistics, the hyperbolic secant distribution is a continuous probability distribution whose probability density function and characteristic function are proportional to the hyperbolic secant function.
Hyperbolic space In mathematics, hyperbolic n-space, denoted Hn, is the maximally symmetric, simply connected, n-dimensional Riemannian manifold with constant sectional curvature −1. Hyperbolic space is the principal example of a space exhibiting hyperbolic geometry.
Hyperbolic trajectory In astrodynamics or celestial mechanics a hyperbolic trajectory is an orbit with the eccentricity greater than 1. Under standard assumptions a body traveling along this trajectory will coast to infinity, arriving there with hyperbolic excess velocity relative to the central body.
Hyperbolic volume (knot) In the mathematical field of knot theory, the hyperbolic volume of a hyperbolic link is simply the volume of the link's complement with respect to its complete hyperbolic metric. The volume is necessarily finite.
Hyperboloid structure Hyperboloid structures in architecture were first applied by Russian engineer Vladimir Shukhov (1853-1939). In the 1880s, Shukhov began to work on the problem of the design of roof systems to use a minimum of materials, time and labor.
Hyperborea In Greek mythology, according to tradition, the Hyperboreans were a mythical people who lived far to the north of Thrace. Their land, called Hyperborea, or Hyperboria ("beyond the Boreas (north wind)"), was perfect, with the Sun shining twenty-four hours a day.
Hyperborean cycle The Hyperborean cycle is a series of short stories by Clark Ashton Smith that take place in the fictional prehistoric setting of Hyperborea (present-day Greenland). Various elements in Smith's cycle have been borrowed by H.

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