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The side or declivity of a hill.

A rude, clownish youth. [Obs.] Milton.

State of being a hoiden.

Like, or appropriate to, a hoiden.

Having a single series of large scutes on the posterior side of the tarsus; -- said of certain birds.

Meteoric iron; a meteorite consisting of metallic iron without stony matter.

One of the classes of echinoderms.

The killing of one human being by another.

The hide of a horse.

One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes.

A compound of the bichloride of mercury with another chloride. [Obs.]

A compound of the binary type, in which hydrogen is united with some other element.

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

An extensive order of Hydrozoa or Acalephæ. [Written also Hydroida.]

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 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.