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A mineral of a white or gray color, occurring massive or crystallized. It is a compound of the carbonates of barium and calcium.

The chief ingredient in a compound.

A positive or nonacid constituent of compound, either elementary, or, if compound, performing the functions of an element.

s first observed by the French physicist Henri Becquerel, in working with uranium and its compounds. They consist of a mixture of alpha, beta, and gamma rays.

tion of ammonia upon chloride of benzoyl, as also by several other reactions with benzoyl compounds.

atoms, each with one hydrogen atom attached, regarded as the type from which the aromatic compounds are derived. This ring formula is provisionally accepted as representing the probable constitution of the benzene molecule, C6H6, and as the type on which its derivatives are formed.

A compound radical, C6H5.CO; the base of benzoic acid, of the oil of bitter almonds, and of an extensive series of compounds. [Formerly written also benzule.]

A compound radical, C6H5.CH2, related to toluene and benzoic acid; -- commonly used adjectively.

Pertaining to, or compounded with, bezoar. -- n.

A compound consisting of two atoms of chlorine with one or more atoms of another element; -- called also dichloride. Bichloride of mercury, mercuric chloride; -- sometimes called corrosive sublimate.

Having two leaflets, as some compound leaves.

a pair of leaflets at the end of each division; biconjugate; twice paired; -- said of a decompound leaf.

A large genus of American, mostly tropical, climbing shrubs, having compound leaves and showy somewhat tubular flowers. B. capreolata is the cross vine of the Southern United States. The trumpet creeper was formerly considered to be of this genus.

A compound of two atoms of hydrogen with some other substance. [Obs.]

Compounded or consisting of two things or parts; characterized by two (things). Binary arithmetic, that in which numbers are expressed according to the binary scale, or in which two figures only, 0 and 1, are used, in lieu of ten; the cipher multiplying everything by two, as in common arithmetic by ten. Thus, 1 is one;…

A bitter compound used in adulterating beer; bittern.

A very bitter compound of quassia, cocculus Indicus, etc., used by fraudulent brewers in adulterating beer. Cooley.

Having the qualities of bitumen; compounded with bitumen; containing bitumen. Near that bituminous lake where Sodom flamed. Milton. Bituminous coal, a kind of coal which yields, when heated, a considerable amount of volatile bituminous matter. It burns with a yellow smoky flame. -- Bituminous limestone, a mineral of a…

object that can not be conveniently reached, and also, when two or more such sheaves are compounded, to change the rate of motion, or to exert increased force; -- used especially in the rigging of ships, and in tackles.

A short sled, mostly used as one of a pair connected by a reach or coupling; also, the compound sled so formed. [U. S.] The long wagon body set on bobsleds. W. D. Howells.