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..
Hydroxy- :: Hydroxy- () A combining form, also used adjectively, indicating hydroxyl as an ingredient..
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..
Hydroxylamine :: Hydroxylamine (n.) A nitrogenous, organic base, NH2.OH, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a strong reducing agent..
Hydrozoa :: Hydrozoa (n. pl.) The Acalephae; one of the classes of coelenterates, including the Hydroidea, Discophora, and Siphonophora..
Hydruret :: Hydruret (n.) A binary compound of hydrogen; a hydride.
Hydrus :: Hydrus (n.) A constellation of the southern hemisphere, near the south pole..
Iodhydrin :: Iodhydrin (n.) One of a series of compounds containing iodine, and analogous to the chlorhydrins..
Metaldehyde :: Metaldehyde (n.) A white crystalline substance isomeric with, and obtained from, acetic aldehyde by polymerization, and reconvertible into the same..
Nitrohydrochloric :: Nitrohydrochloric (a.) Of, pertaining to, or containing, nitric and hydrochloric acids..
Pachyderm :: Pachyderm (n.) One of the Pachydermata.
Pachydermal :: Pachydermal (a.) Of or relating to the pachyderms; as, pachydermal dentition..
Pachydermata :: Pachydermata (n. pl.) A group of hoofed mammals distinguished for the thickness of their skins, including the elephant, hippopotamus, rhinoceros, tapir, horse, and hog. It is now considered an artificial group..