Webster's Unabridged Dictionary - Letter H - Page 31
Heteroscian (n.) One who lives either north or south of the tropics, contrasted with one who lives on the other side of them; -- so called because at noon the shadows always fall in opposite directions (the one northward, the other southward).
Heterosexual (n.) [ C ] ( Informal) Hetero 異性戀者 A person who is sexually attracted to people of the opposite sex.
Compare: Bisexual
Bisexual (a.) 雙性戀的 Sexually attracted to both men and women.
// Bisexual relationships.
Bisexual (n.) [ C ] 雙性戀者 A person who is sexually attracted to both men and women.
// A drop-in centre for gays, lesbians, and bisexuals.
Compare: Homosexual
Homosexual (n.) [C] （尤指男性）同性戀者A person who is sexually attracted to people of the same sex and not to people of the opposite sex.
Notes: Sometimes homosexual refers only to men.
Compare: Lesbian
Lesbian (n.) 女同性戀者 A woman who is sexually attracted to other women.
// Gays and lesbians.
Heterosis (n.) A figure of speech by which one form of a noun, verb, or pronoun, and the like, is used for another, as in the sentence: "What is life to such as me?"
Heterosomati (n. pl.) An order of fishes, comprising the flounders, halibut, sole, etc., having the body and head asymmetrical, with both eyes on one side. Called also Heterosomata, Heterosomi.
Heterosporic (a.) Alt. of Heterosporous
Heterosporous (a.) Producing two kinds of spores unlike each other.
Heterostyled (a.) Having styles of two or more distinct forms or lengths.
Heterostylism (n.) The condition of being heterostyled.
Heterotactous (a.) Relating to, or characterized by, heterotaxy.
Heterotaxy (n.) Variation in arrangement from that existing in a normal form; heterogenous arrangement or structure, as, in botany, the deviation in position of the organs of a plant, from the ordinary or typical arrangement.
Heterotopism (n.) Alt. of Heterotopy.
Heterotopy (n.) A deviation from the natural position; -- a term applied in the case of organs or growths which are abnormal in situation.
Heterotopy (n.) A deviation from the natural position of parts, supposed to be effected in thousands of years, by the gradual displacement of germ cells.
Heterotricha (n. pl.) A division of ciliated Infusoria, having fine cilia all over the body, and a circle of larger ones around the anterior end.
Heterotropal (a.) Alt. of Heterotropous
Heterotropous (a.) Having the embryo or ovule oblique or transverse to the funiculus; amphitropous.
Hething (n.) Contempt; scorn.
Hetmans (n. pl. ) of Hetman.
Hetman (n.) A Cossack headman or general. The title of chief hetman is now held by the heir to the throne of Russia.
Heugh (n.) A crag; a cliff; a glen with overhanging sides.
Heugh (n.) A shaft in a coal pit; a hollow in a quarry.
Heuk (n.) Variant of Huke.
Heulandite (n.) A mineral of the Zeolite family, often occurring in amygdaloid, in foliated masses, and also in monoclinic crystals with pearly luster on the cleavage face. It is a hydrous silicate of alumina and lime.
Heuristic (n.) （常複數）啟發式教育法 <Programming> A rule of thumb, simplification, or educated guess that reduces or limits the search for solutions in domains that are difficult and poorly understood. Unlike algorithms, heuristics do not guarantee optimal, or even feasible, solutions and are often used with no theoretical guarantee.
Heuristic (n.) Approximation algorithm.
Heuristic (n.) A heuristic method; a specific heuristic procedure.
Heuristic (n.) A theory or approach which serves to promote discovery or learning by encouraging experimentation.
Heuristic (a.) 啟發式的；（電腦程式）探索的；嘗試錯誤的 Serving to promote discovery or learning; -- used especially of thories or paradigms which stimulate new ideas for discovering facts in experimental sciences.
Heuristic (a.) Serving to stimulate people to learn and discover on their own, especially by encouraging experimental and trial-and-error methods for solving problems.
Heuristic (a.) Pertaining to or based on trial-and-error and experimental methods of learning and evaluation.
Heuristic (a.) (Computers) Based on the use of an efficient trial-and error method to search a space of possible solutions to a problem, or to find an acceptable approximate solution, when an exact algorithmic method is unavailable or too time-consuming.
Heuristic (a.) Of or relating to or using a general formulation that serves to guide investigation [ant: {algorithmic}].
Heuristic (n.) A commonsense rule (or set of rules) intended to increase the probability of solving some problem [syn: {heuristic}, {heuristic rule}, {heuristic program}].
Heuristic () Non-algorithmic procedure A rule of thumb, simplification, or educated guess that reduces or limits the search for solutions in domains that are difficult and poorly understood. Unlike algorithms, heuristics do not guarantee optimal, or even feasible, solutions and are often used with no theoretical guarantee.
Heuristic () Non-algorithmic procedure Approximation algorithm. (2001-04-12)
Heuristic (a.) Serving to discover or find out.
Heuristic (a.) (Specialized) (Of a method of teaching) （教學法）啟發式的，探索式的 Allowing students to learn by discovering things themselves and learning from their own experiences rather than by telling them things.
Heuristic (n.) [ C ] A method of learning or solving problems that allows people to discover things themselves and learn from their own experiences.
// As a heuristic, it is a good test to ask the question: what might I do in this situation?
Heuristics (n.) [ U ] The study and use of heuristic methods.
// Heuristics aren't taught in medical school and are in fact discouraged.
Heved (n.) The head.
Hewed (imp.) of Hew.
Hewed (p. p.) of Hew.
Hewn () of Hew.
Hewing (p. pr. & vb. n.) of Hew.
Hew (v. t.) To cut with an ax; to fell with a sharp instrument; -- often with down, or off.
Hew (v. t.) To form or shape with a sharp instrument; to cut; hence, to form laboriously; -- often with out; as, to hew out a sepulcher.
Hew (v. t.) To cut in pieces; to chop; to hack.
Hew (n.) Destruction by cutting down.
Hew (n.) Hue; color.
Hew (n.) Shape; form.
Hewe (n.) A domestic servant; a retainer.
Hewer (n.) One who hews.
Hewhole (n.) The European green woodpecker. See Yaffle.
Hewn (a.) Felled, cut, or shaped as with an ax; roughly squared; as, a house built of hewn logs.
Hewn (a.) Roughly dressed as with a hammer; as, hewn stone.
Hex- () Alt. of Hexa
Hexa () A prefix or combining form, used to denote six, sixth, etc.; as, hexatomic, hexabasic.
Hexabasic (a.) Having six hydrogen atoms or six radicals capable of being replaced or saturated by bases; -- said of acids; as, mellitic acid is hexabasic.
Hexacapsular (a.) Having six capsules or seed vessels.
Hexachord (n.) A series of six notes, with a semitone between the third and fourth, the other intervals being whole tones.
Hexacid (a.) Having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent; -- said of bases; as, mannite is a hexacid base.
Hexactinellid (a.) Having six-rayed spicules; belonging to the Hexactinellinae.
Hexactinelline (a.) Belonging to the Hexactinellinae, a group of sponges, having six-rayed siliceous spicules.
Hexactinia (n. pl.) The Anthozoa.
Hexad (n.) An atom whose valence is six, and which can be theoretically combined with, substituted for, or replaced by, six monad atoms or radicals; as, sulphur is a hexad in sulphuric acid. Also used as an adjective.
Hexadactylous (a.) Having six fingers or toes.
Hexade (n.) A series of six numbers.
Hexadecane (n.) See Hecdecane.
Hexagon (n.) A plane figure of six angles.
Hexagonal (a.) Having six sides and six angles; six-sided.
Hexagonally (adv.) In an hexagonal manner.
Hexagony (n.) A hexagon.
Hexagynia (n. pl.) A Linnaean order of plants having six pistils.
Hexagynian (a.) Alt. of Hexagynous
Hexagynous (a.) Having six pistils.
Hexahedral (a.) In the form of a hexahedron; having six sides or faces.
Hexahedrons (n. pl. ) of Hexahedron
Hexahedra (n. pl. ) of Hexahedron
Hexahedron (n.) A solid body of six sides or faces.
Hexahemeron (n.) A term of six days.
Hexahemeron (n.) The history of the six day's work of creation, as contained in the first chapter of Genesis.
Hexamerous (a.) In six parts; in sixes.
Hexameter (n.) (Gr. & Lat. Pros.) A verse of six feet, the first four of which may be either dactyls or spondees, the fifth must regularly be a dactyl, and the sixth always a spondee. In this species of verse are composed the Iliad of Homer and the Aeneid of Virgil. In English hexameters accent takes the place of quantity.
Leaped like the | roe when he | hears in the | woodland the | voice of the | huntsman. -- Longfellow.
Strongly it | bears us a- | long on | swelling and | limitless | billows, Nothing be- | fore and | nothing be- | hind but the | sky and the | ocean. -- Coleridge.
Hexameter (a.) Having six metrical feet, especially dactyls and spondees. -- Holland. Hexametric
Hexameter (n.) A verse line having six metrical feet.
Hexametric (a.) Alt. of Hexametrical.
Hexametrical (a.) Consisting of six metrical feet.
Hexametrist (n.) One who writes in hexameters. "The Christian hexametrists." -- Milman.
Hexandria (n. pl.) (Bot.) A Linnaean class of plants having six stamens. Hexandrian
Hexandrian (a.) Alt. of Hex-androus.
Hex-androus (a.) (Bot.) Having six stamens.
Hexane (n.) (Chem.) Any one of five hydrocarbons, C6H14, of the paraffin series. They are colorless, volatile liquids, and are so called because the molecule has six carbon atoms.
Hexane (n.) A colorless flammable liquid alkane derived from petroleum and used as a solvent.
Hexangular (a.) Having six angles or corners.
Hexangular (a.) Having six sides or divided into hexagons [syn: hexangular, hexagonal].
Hexapetalous (a.) (Bot.) Having six petals.
Hexaphyllous (a.) (Bot.) Having six leaves or leaflets.
Hexapla (n.) A collection of the Holy Scriptures in six languages or six versions in parallel columns; particularly, the edition of the Old Testament published by Origen, in the 3d century.
Hexapod (a.) Having six feet.
Hexapod (n.) (Zool.) An animal having six feet; one of the Hexapoda.
Hexapod (n.) An animal having six feet.
Hexapoda (n. pl.) (Zool.) The true, or six-legged, insects; insects other than myriapods and arachnids.
Note: The Hexapoda have the head, thorax, and abdomen differentiated, and are mostly winged. They have three pairs of mouth organs, viz., mandibles, maxill[ae], and the second maxill[ae] or labial palpi; three pairs of thoracic legs; and abdominal legs, which are present only in some of the lowest forms, and in the larval state of some of the higher ones. Many (the Metabola) undergo a complete metamorphosis, having larv[ae] (known as maggots, grubs, caterpillars) very unlike the adult, and pass through a quiescent pupa state in which no food is taken; others (the Hemimetabola) have larv[ae] much like the adult, expert in lacking wings, and an active pupa, in which rudimentary wings appear. See Insecta. The Hexapoda are divided into several orders.
Hexapoda (n.) Insects; about five-sixths of all known animal species [syn: Insecta, class Insecta, Hexapoda, class Hexapoda].
Hexapodous (a.) (Zool.) Having six feet; belonging to the Hexapoda.
Hexapterous (a.) (Bot.) Having six processes. -- Gray. Hexastich
Hexastich (n.) Alt. of Hexastichon.
Hexastichon (n.) A poem consisting of six verses or lines.
Hexastyle (a.) (Arch.) Having six columns in front; -- said of a portico or temple.
Hexastyle (n.) A hexastyle portico or temple.
Hexateuch (n.) The first six books of the Old Testament.
Hexatomic (a.) (Chem.) Having six atoms in the molecule. [R.]
Hexatomic (a.) (Chem.) Having six replaceable radicals.
Hexavalent (a.) (Chem.) Having a valence of six; -- said of hexads.
Hexdecyl (n.) (Chem.) The essential radical, C16H33, of hecdecane.
Hexdecylic (a.) (Chem.) Pertaining to, or derived from, hexdecyl or hecdecane; as, hexdecylic alcohol.
Hexeikosane (n.) (chem.) A hydrocarbon, C26H54, resembling paraffine; -- so called because each molecule has twenty-six atoms of carbon. [Written also hexacosane.]
Compare: Hexylene
Hexylene (n.) (Chem.) A colorless, liquid hydrocarbon, C6H12, of the ethylene series, produced artificially, and found as a natural product of distillation of certain coals; also, any one several isomers of hexylene proper. Called also hexene.
Hexene (n.) (Chem.) Same as Hexylene.
Hexicology (n.) The science which treats of the complex relations of living creatures to other organisms, and to their surrounding conditions generally. -- St. George Mivart.
Hexine (n.) (Chem.) A hydrocarbon, C6H10, of the acetylene series, obtained artificially as a colorless, volatile, pungent liquid; -- called also hexoylene.
Hexoctahedron (n.) (Geom.) A solid having forty-eight equal triangular faces.
Hexoic (a.) (Chem.) Pertaining to, or derived from, hexane; as, hexoic acid.