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Hydrargyrate :: Hydrargyrate (a.) Of or pertaining to mercury; containing, or impregnated with, mercury..

Hydrated :: Hydrated (a.) Formed into a hydrate; combined with water.

Air Chamber :: Air chamber () A cavity containing air to act as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine.

Galactin :: Galactin (n.) An amorphous, gummy carbohydrate resembling gelose, found in the seeds of leguminous plants, and yielding on decomposition several sugars, including galactose..

Hydrating :: Hydrating (p. pr. & vb. n.) of Hydrat.

Hydrate :: Hydrate (n.) A substance which does not contain water as such, but has its constituents (hydrogen, oxygen, hydroxyl) so arranged that water may be eliminated; hence, a derivative of, or compound with, hydroxyl; hydroxide; as, ethyl hydrate, or common alcohol; calcium hydrate, or slaked lime..

Lake :: Lake (n.) A pigment formed by combining some coloring matter, usually by precipitation, with a metallic oxide or earth, esp. with aluminium hydrate; as, madder lake; Florentine lake; yellow lake, etc..

Menthene :: Menthene (n.) A colorless liquid hydrocarbon resembling oil of turpentine, obtained by dehydrating menthol. It has an agreeable odor and a cooling taste..

Hydr- :: Hydr- () A combining form from Gr. /, /, water (see Hydra)..

Cellulose :: Cellulose (n.) The substance which constitutes the essential part of the solid framework of plants, of ordinary wood, linen, paper, etc. It is also found to a slight extent in certain animals, as the tunicates. It is a carbohydrate, (C6H10O5)n, isomeric with starch, and is convertible into starches and sugars by the action of heat and acids. When pure, it is a white amorphous mass. See Starch, Granulose, Lignin..

Saccharonic :: Saccharonic (a.) Of, pertaining to, or derived from, saccharone; specifically, designating an unstable acid which is obtained from saccharone (a) by hydration, and forms a well-known series of salts..

Humin :: Humin (n.) A bitter, brownish yellow, amorphous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates; -- called also humic acid, ulmin, gein, ulmic or geic acid, etc..

Hydra :: Hydra (n.) A serpent or monster in the lake or marsh of Lerna, in the Peloponnesus, represented as having many heads, one of which, when cut off, was immediately succeeded by two others, unless the wound was cauterized. It was slain by Hercules. Hence, a terrible monster..

Waterwork :: Waterwork (n.) An hydraulic apparatus, or a system of works or fixtures, by which a supply of water is furnished for useful or ornamental purposes, including dams, sluices, pumps, aqueducts, distributing pipes, fountains, etc.; -- used chiefly in the plural..

Gelose :: Gelose (n.) An amorphous, gummy carbohydrate, found in Gelidium, agar-agar, and other seaweeds..

Thecophora :: Thecophora (n. pl.) A division of hydroids comprising those which have the hydranths in thecae and the gonophores in capsules. The campanularians and sertularians are examples. Called also Thecata. See Illust. under Hydroidea.

Hydrant :: Hydrant (n.) A discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks; a water plug.

Pyrosulphuric :: Pyrosulphuric (a.) Pertaining to, or designating, an acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration..

Hydrotheca :: Hydrotheca (n.) One of the calicles which, in some Hydroidea (Thecaphora), protect the hydrants. See Illust. of Hydroidea, and Campanularian..

Hydrangea :: Hydrangea (n.) A genus of shrubby plants bearing opposite leaves and large heads of showy flowers, white, or of various colors. H. hortensis, the common garden species, is a native of China or Japan..

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