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A measure of land. See 3d Hide.

A ternary compound of oxygen and sulphur.

A sulphide containing more sulphur than some other compound of the same elements; as, iron pyrites is a persulphide; -- formerly called persulphuret.

A binary compound of phosphorus.

A sulphide having more than one atom of sulphur in the molecule; -- contrasted with monosulphide.

That one of a series of sulphides of any element which has the lowest proportion of sulphur; a sulphide with but one atom of sulphur in the molecule.

Of or pertaining to the rachis; spinal; vertebral. Same as Rhachidian.

See Rhaphides.

A cowhide, or coarse riding whip, made of untanned (or raw) hide twisted.

Of or pertaining to the rhachis; as, the rhachidian teeth of a mollusk.

nsparent, often needlle-shaped, crystals found in the tissues of plants. [Written also raphides.]

Any species of the genus Rhinilophus, or family Rhinolophidæ, having a horseshoe-shaped nasal crest; a horseshoe bat.

Same as Thebaic.

A sulphide, analogous to a sesquioxide, containing three atoms of sulphur to two of the other ingredient; -- formerly called also sesquisulphuret; as, orpiment, As2S3 is arsenic sesquisulphide.

A thin board; a billet of wood; a splinter. [Prov. Eng.]

A special podlike or fusiform branch containing tetraspores. It is found in certain red algæ.

A nonacid compound consisting of one equivalent of sulphur and more than one equivalent of some other body, as a metal.

binary compound of sulphur, or one so regarded; -- formerly called sulphuret. Double sulphide (Chem.), a compound of two sulphides. -- Hydrogen sulphide. (Chem.) See under Hydrogen. -- Metallic sulphide, a binary compound of sulphur with a metal.

A little sylph; a young or diminutive sylph. "The place of the sylphid queen." J. R. Drake. Ye sylphs and sylphids, to your chief give ear, Fays, fairies, genii, elves, and demons, hear. Pope.

A trisulphide.