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Hydroxide :: Hydroxide (n.) A hydrate; a substance containing hydrogen and oxygen, made by combining water with an oxide, and yielding water by elimination. The hydroxides are regarded as compounds of hydroxyl, united usually with basic element or radical; as, calcium hydroxide ethyl hydroxide..

Polypite :: Polypite (n.) One of the feeding zooids, or polyps, of a coral, hydroid, or siphonophore; a hydranth. See Illust. of Campanularian..

Neuter :: Neuter (n.) An organism, either vegetable or animal, which at its maturity has no generative organs, or but imperfectly developed ones, as a plant without stamens or pistils, as the garden Hydrangea; esp., one of the imperfectly developed females of certain social insects, as of the ant and the common honeybee, which perform the labors of the community, and are called workers..

Hydracid :: Hydracid (n.) An acid containing hydrogen; -- sometimes applied to distinguish acids like hydrochloric, hydrofluoric, and the like, which contain no oxygen, from the oxygen acids or oxacids. See Acid..

High-pressure :: High-pressure (a.) Having or involving a pressure greatly exceeding that of the atmosphere; -- said of steam, air, water, etc., and of steam, air, or hydraulic engines, water wheels, etc..

Hydramide :: Hydramide (n.) One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes.

Salt :: salt () Sulphate of magnesia having cathartic qualities; -- originally prepared by boiling down the mineral waters at Epsom, England, -- whence the name; afterwards prepared from sea water; but now from certain minerals, as from siliceous hydrate of magnesia..

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

Cacodyl :: Cacodyl (n.) Alkarsin; a colorless, poisonous, arsenical liquid, As2(CH3)4, spontaneously inflammable and possessing an intensely disagreeable odor. It is the type of a series of compounds analogous to the nitrogen compounds called hydrazines..

Sucre :: Sucrate (n.) A compound of sucrose (or of some related carbohydrate) with some base, after the analogy of a salt; as, sodium sucrate..

Hydrosalt :: Hydrosalt (n.) A hydrous salt; a salt combined with water of hydration or crystallization.

Mercury :: Mercury (n.) A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, /..

Hydroxyl :: Hydroxyl (n.) A compound radical, or unsaturated group, HO, consisting of one atom of hydrogen and one of oxygen. It is a characteristic part of the hydrates, the alcohols, the oxygen acids, etc..

Theca :: Theca (n.) The chitinous cup which protects the hydranths of certain hydroids.

Magnesia :: Magnesia (n.) A light earthy white substance, consisting of magnesium oxide, and obtained by heating magnesium hydrate or carbonate, or by burning magnesium. It has a slightly alkaline reaction, and is used in medicine as a mild antacid laxative. See Magnesium..

Grizzly :: Grizzly (a.) In hydraulic mining, gratings used to catch and throw out large stones from the sluices..

Cryohydrate :: Cryohydrate (n.) A substance, as salt, ammonium chloride, etc., which crystallizes with water of crystallization only at low temperatures, or below the freezing point of water..

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..

Water Lime :: Water lime () Hydraulic lime.

Ram :: Ram (n.) A hydraulic ram. See under Hydraulic.

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