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The hypothetical radical PH4, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine.

The hypothetical radical of phthalic acid.

The hypothetical radical of picric acid, analogous to phenyl.

A hypothetical genus of primates intermediate between man and the anthropoid apes. Haeckel.

sed sometimes in a disparaging sense. A style . . . without sententious pretension or antithetical prettiness. Jeffrey.

A hypothetical hydrocarbon radical, C3H5, isomeric with allyl and glyceryl, and regarded as the essential residue of glycerin. Cf. Allyl, and Glyceryl.

The unsymmetrical hypothetical hydrocarbon radical, CH3.CH2.CH, analogous to ethylidene, and regarded as the type of certain derivatives of propane; -- called also propylidene.

The hypothetical radical C3H5O, regarded as the essential residue of propionic acid and certain related compounds.

The hypothetical radical C3H7, regarded as the essential residue of propane and related compounds.

r of individuals, of a species. A species is a class of individuals, each of which is hypothetically considered to be the descendant of the same protoplast, or of the same pair of protoplasts. Latham.

The hypothetical homogeneous cosmic material of the original universe, supposed to have been differentiated into what are recognized as distinct chemical elements.

A hypothetical radical, C5H4N, regarded as the essential residue of pyridine, and analogous to phenyl.

in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with hydrochloric acid a deep…

A hypothetical radical of quinine and related alkaloids.

The hypothetical radical of certain quinone derivatives related to rhodizonic acid.

The hypothetical radical of salicylic acid and of certain related compounds.

A hypothetical radical of selenium, analogous to sulphonium. [R.]

A hypothetical substance, Sn(OH)4, analogous to silic acid, and called also normal stannic acid. (b) Metastannic acid. -- Stannic chloride, a thin, colorless, fuming liquid, SnCl4, used as a mordant in calico printing and dyeing; -- formerly called spirit of tin, or fuming liquor of Libavius. -- Stannic oxide, tin ox…

The hypothetical radical characteristic of stearic acid.

Pertaining to, or illustrating, the hypothetical space relations of atoms in the molecule; as, a stereo-chemic formula.