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merican plaice, or summer flounder (see Flounder), the halibut, and the diamond flounder (Hypsopsetta guttulata) of California.

A plant of the genus Hypericum (H. Androsoemum), from which a healing ointment is prepared in Spain; -- called also parkleaves.

Having two sides only; hence, double-faced; hypocritical.

An indefinite number, usu. more than ten and less than one hundred; a lot. Often used hyperbolically, and usually expressing the notion of more than the usual number or more than I would like; -- "I've told you umpteen times not to do that." umpteenth. Ordinal of umpteen, with corresponding signification.…

ct; subordinate; -- generally in composition with a noun, and written with or without the hyphen; as, an undercurrent; undertone; underdose; under-garment; underofficer; undersheriff. Under covert (Zoöl.), one of the feathers situated beneath the bases of the quills in the wings and tail of a bird. See Illust. under Bi…

Not feigned; not counterfeit; not hypocritical; real; sincere; genuine; as, unfeigned piety; unfeigned love to man. "Good faith unfeigned." Chaucer. -- Un*feign"ed*ly, adv. -- Un*feign"ed*ness, n.

A cask suspended on trunnions, in which fermentation is carried on. Hypostatic union (Theol.) See under Hypostatic. -- Latin union. See under Latin. -- Legislative Union (Eng. Hist.), the union of Great Britain and Ireland, which took place Jan. 1, 1801. -- Union, or Act of Union (Eng. Hist.), the act by which Scotl…

roduced by the action of ammonia on ethyl carbonate. It is used somewhat in medicine as a hypnotic. By extension, any one of the series of related substances of which urethane proper is the type.

The hypothetical radical C5H9O, regarded as the essential nucleus of certain valeric acid derivatives.

The hypothetical radical VO, regarded as a characterized residue of certain vanadium compounds.

The hypothetical radical characteristic of vanillic alcohol.

An old name for hypochondria, or melancholy; the blues. "A fit of vapors." Pope.

Hypochondriacal; affected by hysterics; splenetic; peevish; humorsome. Pallas grew vap'rish once and odd. Pope.

Hypochondriacal; splenetic; peevish.

uses constriction of the blood vessels to which they go. These nerves are also called vasohypertonic. n.

he blood vessels to which they go. These nerves are also called vaso- inhibitory, and vasohypotonic nerves, since their stimulation causes relaxation and rest.

The hypothetical radical C2H3, regarded as the characteristic residue of ethylene and that related series of unsaturated hydrocarbons with which the allyl compounds are homologous.

of application; -- sometimes called virtual work. -- Virtual velocity (Mech.), a minute hypothetical displacement, assumed in analysis to facilitate the investigation of statical problems. With respect to any given force of a number of forces holding a material system in equilibrium, it is the projection, upon the di…

longing to Vortex and allied genera. See Illustration in Appendix. Vortex atom (Chem.), a hypothetical ring-shaped mass of elementary matter in continuous vortical motion. It is conveniently regarded in certain mathematical speculations as the typical form and structure of the chemical atom. -- Vortex wheel, a kind of…

of vibration. (b) (Geom.) A mathematical surface of the fourth order which, upon certain hypotheses, is the locus of a wave surface of light in the interior of crystals. It is used in explaining the phenomena of double refraction. See under Refraction. -- Wave theory. (Physics) See Undulatory theory, under Undulatory…