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Terpin :: Terpin (n.) A white crystalline substance regarded as a hydrate of oil of turpentine.

Hydra :: Hydra (n.) A southern constellation of great length lying southerly from Cancer, Leo, and Virgo..

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..

Thiophenol :: Thiophenol (n.) A colorless mobile liquid, C6H5.SH, of an offensive odor, and analogous to phenol; -- called also phenyl sulphydrate..

Centaur :: Centaur (n.) A constellation in the southern heavens between Hydra and the Southern Cross.

Hydrina :: Hydrina (n. pl.) The group of hydroids to which the fresh-water hydras belong.

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

Seminose :: Seminose (n.) A carbohydrate of the glucose group found in the thickened endosperm of certain seeds, and extracted as yellow sirup having a sweetish-bitter taste..

Hydrargyrum :: Hydrargyrum (n.) Quicksilver; mercury.

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..

Verditer :: Verditer (n.) Either one of two pigments (called blue verditer, and green verditer) which are made by treating copper nitrate with calcium carbonate (in the form of lime, whiting, chalk, etc.) They consist of hydrated copper carbonates analogous to the minerals azurite and malachite..

Sterile :: Sterhydraulic (a.) Pertaining to, or designating, a kind of hydraulic press; resembling such a press in action or principle..

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..

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, /..

Hydraulic :: Hydraulic (a.) Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock..

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

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..

Hydraulical :: Hydraulical (a.) Hydraulic.

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

Water Mite :: Water mite () Any of numerous species of aquatic mites belonging to Hydrachna and allied genera of the family Hydrachnidae, usually having the legs fringed and adapted for swimming. They are often red or red and black in color, and while young are parasites of fresh-water insects and mussels. Called also water tick, and water spider..

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