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Heterocera

A division of Lepidoptera, including the moths, and hawk moths, which have the antenn/ variable in form.

Heterocercal

Having the vertebral column evidently continued into the upper lobe of the tail, which is usually longer than the lower one, as in sharks.

Heterocercy

Unequal development of the tail lobes of fishes; the possession of a heterocercal tail.

Heterochromous

Having the central florets of a flower head of a different color from those of the circumference.

Heteroclite

A word which is irregular or anomalous either in declension or conjugation, or which deviates from ordinary forms of inflection in words of a like kind; especially, a noun which is irregular in declension.

Heterocyst

A cell larger than the others, and of different appearance, occurring in certain alg/ related to nostoc.

Heterodactylous

Having the first and second toes turned backward, as in the trogons.

Heterodox

An opinion opposed to some accepted standard.

Heterodoxy

An opinion or doctrine, or a system of doctrines, contrary to some established standard of faith, as the Scriptures, the creed or standards of a church, etc.; heresy.

Heteroecious

Passing through the different stages in its life history on an alternation of hosts, as the common wheat-rust fungus (Puccinia graminis), and certain other parasitic fungi; -- contrasted with aut/cious.

Heterogamous

The condition of having two or more kinds of flowers which differ in regard to stamens and pistils, as in the aster. Characterized by heterogamy.

Heterogangliate

Having the ganglia of the nervous system unsymmetrically arranged; -- said of certain invertebrate animals.

Heterogeneous

Differing in kind; having unlike qualities; possessed of different characteristics; dissimilar; -- opposed to homogeneous, and said of two or more connected objects, or of a conglomerate mass, considered in respect to the parts of which it is made up.

Heterogenetic

Relating to heterogenesis; as, heterogenetic transformations.

Heterogenist

One who believes in the theory of spontaneous generation, or heterogenesis.

Heterogenous

Of or pertaining to heterogenesis; heterogenetic.

Heterogony

The condition of having two or more kinds of flowers, different as to the length of their stamens and pistils.

Heterographic

Employing the same letters to represent different sounds in different words or syllables; -- said of methods of spelling; as, the ordinary English orthography is heterographic.

Heterography

That method of spelling in which the same letters represent different sounds in different words, as in the ordinary English orthography; e. g., g in get and in ginger.

Heterogynous

Having females very unlike the males in form and structure; -- as certain insects, the males of which are winged, and the females wingless.

Heterologous

Characterized by heterology; consisting of different elements, or of like elements in different proportions; different; -- opposed to homologous; as, heterologous organs.

Heterology

The absence of correspondence, or relation, in type of structure; lack of analogy between parts, owing to their being composed of different elements, or of like elements in different proportions; variation in structure from the normal form; -- opposed to homology.

Heteromera

A division of Coleoptera, having heteromerous tarsi.

Heteromerous

Unrelated in chemical composition, though similar or indentical in certain other respects; as, borax and augite are hom/morphous, but heteromerous.

Heteromorphic

Deviating from the normal, perfect, or mature form; having different forms at different stages of existence, or in different individuals of the same species; -- applied especially to insects in which there is a wide difference of form between the larva and the adult, and to plants having more than one form of flower.

Heteromyaria

A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal. See Dreissena, and Illust. under Byssus.

Heteronereis

A free-swimming, dimorphic, sexual form of certain species of Nereis.

Heteronomy

Subordination or subjection to the law of another; political subjection of a community or state; -- opposed to autonomy.

Heteronym

That which is heteronymous; a thing having a different name or designation from some other thing; -- opposed to homonym.

Heteronymous

Having different names or designations; standing in opposite relations.

Heteroousian

One of those Arians who held that the Son was of a different substance from the Father.

Heteropathic

Of or pertaining to the method of heteropathy; allopathic.

Heteropathy

That mode of treating diseases, by which a morbid condition is removed by inducing an opposite morbid condition to supplant it; allopathy.

Heteropelmous

Having each of the two flexor tendons of the toes bifid, the branches of one going to the first and second toes; those of the other, to the third and fourth toes. See Illust. in Append.

Heterophemy

The unconscious saying, in speech or in writing, of that which one does not intend to say; -- frequently the very reverse of the thought which is present to consciousness.

Heteroplasm

An abnormal formation foreign to the economy, and composed of elements different from those are found in it in its normal condition.

Heteroplastic

Producing a different type of organism; developing into a different form of tissue, as cartilage which develops into bone.

Heteropod

One of the Heteropoda. Heteropodous.

Heteropoda

An order of pelagic Gastropoda, having the foot developed into a median fin. Some of the species are naked; others, as Carinaria and Atlanta, have thin glassy shells.

Heteroptera

A suborder of Hemiptera, in which the base of the anterior wings is thickened. See Hemiptera.

Heteroscian

One who lives either north or south of the tropics, as 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).

Heterosis

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

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.

Heterostyled

Having styles of two or more distinct forms or lengths.

Heterotaxy

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.

Heterotopy Heterotopism

A deviation from the natural position; -- a term applied in the case of organs or growths which are abnormal in situation.

Heterotricha

A division of ciliated Infusoria, having fine cilia all over the body, and a circle of larger ones around the anterior end.

Hetman

A Cossack headman or general. The title of chief hetman is now held by the heir to the throne of Russia.

Heuchera

A genus of North American herbs with basal cordate or orbicular leaves and small panicled flowers.

Heugh

A crag; a cliff; a glen with overhanging sides.

Heuk

Variant of Huke.

Heulandite

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

A heuristic method; a specific heuristic procedure.

heuristically

In a heuristic manner; by using a heuristic method; by serving as a heuristic method; as, a heuristically guided search technique; a heuristically valuable theory.

Hevea

A small genus of South American trees yielding latex. It includes the rubber tree, Hevea brasiliensis, originally found in South America, but now used for production of rubber world-wide.

Hewe

A domestic servant; a retainer.

Hewhole

The European green woodpecker. See Yaffle.

Hewn

Felled, cut, or shaped as with an ax; roughly squared; as, a house built of hewn logs.

Hexabasic

Having six hydrogen atoms or six radicals capable of being replaced or saturated by bases; -- said of acids; as, mellitic acid is hexabasic.

Hexachord

A series of six notes, with a semitone between the third and fourth, the other intervals being whole tones.

Hexacid

Having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent; -- said of bases; as, mannite is a hexacid base.

Hexactinellid

Having six-rayed spicules; belonging to the Hexactinellin/.

Hexactinelline

Belonging to the Hexactinellin/, a group of sponges, having six-rayed siliceous spicules.

Hexad

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.

Hexade

A series of six numbers.

Hexagon

A plane figure of six angles.

Hexagonal

Having six sides and six angles; six-sided.

Hexagram

A figure of six lines A figure composed of two equal triangles intersecting so that each side of one triangle is parallel to a side of the other, and the six points coincide with those of a hexagon. In Chinese literature, one of the sixty-four figures formed of six parallel lines (continuous or broken), forming the basis of the I Ching (Yih King), or /Book of Changes./

Hexagynia

A Linn/an order of plants having six pistils.

Hexahedral

In the form of a hexahedron; having six sides or faces.

Hexameter

Having six metrical feet, especially dactyls and spondees.

Hexandria

A Linn/an class of plants having six stamens.

Hexane

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.

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