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A compound of hydriodic acid with a base; -- distinguished from an iodide, in which only the iodine combines with the base.

A compound of hydrobromic acid with a base; -- distinguished from a bromide, in which only the bromine unites with the base.

A compound containing only hydrogen and carbon, as methane, benzene, etc.; also, by extension, any of their derivatives. Hydrocarbon burner, furnace, stove, a burner, furnace, or stove with which liquid fuel, as petroleum, is used.

Pertaining to, or compounded of, chlorine and hydrogen gas; as, hydrochloric acid; chlorhydric. Hydrochloric acid (Chem.), hydrogen chloride; a colorless, corrosive gas, HCl, of pungent, suffocating odor. It is made in great quantities in the soda process, by the action of sulphuric acid on common salt. It has a great…

A compound of hydrochloric acid with a base; -- distinguished from a chloride, where only chlorine unites with the base.

A compound of hydrocyanic acid with a base; -- distinguished from a cyanide, in which only the cyanogen so combines.

A supposed compound of hydrofluoris acid and a base; a fluoride. [Archaic]

Pertaining to, or denoting, a compound consisting of a double fluoride of hydrogen and silicon; silicofluoric. See Silicofluoric.

A binary compound containing hydrogen; a hydride. [R.] See Hydride.

One of a series of compounds, derived from hydrogen sulphide by the replacement of half its hydrogen by a base or basic radical; as, potassium hydrosulphide, KSH. The hydrosulphides are analogous to the hydrates and include the mercaptans.

A saline compound of hydrosulphurous acid and a base. [R.]

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.

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.

A binary compound of hydrogen; a hydride. [Obs.]

A compound having a relatively large percentage of oxygen; a peroxide. [Obs.]

rd, the remainder of which is carried to the next line; or between the parts of many a compound word; as in fine-leaved, clear-headed. It is also sometimes used to separate the syllables of words.

ers with a low valence, or in a low state of oxidization, usually the lowest, into the compounds indicated; as, hyposulphurous acid.

Pertaining to, or derived from, chlorine having a valence lower than in chlorous compounds. Hypochlorous acid (Chem.), an acid derived from chlorine, not known in a pure state, but forming various salts, called hypochlorites.

Containing or derived from nitrogen having a lower valence than in nitrous compounds. Hyponitrous acid (Chem.), an unstable nitrogen acid, NOH, whose salts are produced by reduction of the nitrates, although the acid itself is not isolated in the free state except as a solution in water; -- called also nitrosylic acid.…

rived from, or containing, phosphorus in a lower state of oxidation than in phosphoric compounds; as, hypophosphoric acid. Hypophosphoric acid (Chem.), an acid, P2H4O6, produced by the slow oxidation of moist phosphorus, and isolated only as a solution in water. It is regarded as a condensation product of one molecule…