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Pentyl :: Pentyl (n.) The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as Amyl..

Ester :: Ester (n.) An ethereal salt, or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thus the natural fats are esters of glycerin and the fatty acids, oleic, etc..

Azo- :: Azo- () Now especially applied to compounds containing a two atom nitrogen group uniting two hydrocarbon radicals, as in azobenzene, azobenzoic, etc. These compounds furnish many artificial dyes. See Diazo-..

Dicyanide :: Dicyanide (n.) A compound of a binary type containing two cyanogen groups or radicals; -- called also bicyanide.

Ammonium :: Ammonium (n.) A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals..

Hexacid :: Hexacid (a.) Having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent; -- said of bases; as, mannite is a hexacid base..

Sesquioxide :: Sesquioxide (n.) An oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, Al2O3 is a sesquioxide..

Replaceable :: Replaceable (a.) Capable of being replaced (by), or of being exchanged (for); as, the hydrogen of acids is replaceable by metals or by basic radicals..

Heptad :: Heptad (n.) An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective..

Borate :: Borate (n.) A salt formed by the combination of boric acid with a base or positive radical.

Amide :: Amide (n.) A compound formed by the union of amidogen with an acid element or radical. It may also be regarded as ammonia in which one or more hydrogen atoms have been replaced by an acid atom or radical.

Left :: Left (n.) Those members of a legislative assembly (as in France) who are in the opposition; the advanced republicans and extreme radicals. They have their seats at the left-hand side of the presiding officer. See Center, and Right..

Radicality :: Radicality (n.) Radicalness; relation to a root in essential nature or principle.

Amyl :: Amyl (n.) A hydrocarbon radical, C5H11, of the paraffine series found in amyl alcohol or fusel oil, etc..

Quinoxyl :: Quinoxyl (n.) The hypothetical radical of certain quinone derivatives related to rhodizonic acid.

Fluosilicate :: Fluosilicate (n.) A double fluoride of silicon and some other (usually basic) element or radical, regarded as a salt of fluosilicic acid; -- called also silicofluoride..

Naphthyl :: Naphthyl (n.) A hydrocarbon radical regarded as the essential residue of naphthalene.

Nitride :: Nitride (n.) A binary compound of nitrogen with a more metallic element or radical; as, boric nitride..

Chloride :: Chloride (n.) A binary compound of chlorine with another element or radical; as, chloride of sodium (common salt)..

Revolution :: Revolution (n.) A total or radical change; as, a revolution in one's circumstances or way of living..

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