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f the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.

A colorless variety of chabazite; the original was from Leipa, in Bohemia.

A glassy colorless mineral occurring in rhombohedral crystals, sometimes used as a gem. It is a silicate of glucina, and receives its name from its deceptive similarity to quartz.

-- Phenyl hydrazine (Chem.), a nitrogenous base (C6H5.N2H3) produced artificially as a colorless oil which unites with acids, ketones, etc., to form well-crystallized compounds.

A colorless gas, PH3, analogous to ammonia, and having a disagreeable odor resembling that of garlic. Called also hydrogen phosphide, and formerly, phosphureted hydrogen.

A colorless crystalline substance obtained by reduction from phthaleïn, into which it is easily converted by oxidation; hence, any one of the series of which phthalin proper is the type.

ed to pyridine, and obtained from bone oil, acrolein ammonia, and coal-tar naphtha, as colorless mobile liquids of strong odor; -- called also methyl pyridine.

A colorless viscous substance having a bitter-sweet taste.

A colorless oily liquid related to the ketones, and obtained by the decomposition of pinacone; hence, by extension, any one of the series of which pinacolin proper is the type. [Written also pinacoline.]

glycerin, used as a substitute for ointments. U. S. Disp. Blood plasma (Physiol.), the colorless fluid of the blood, in which the red and white blood corpuscles are suspended. -- Muscle plasma (Physiol.), the fundamental part of muscle fibers, a thick, viscid, albuminous fluid contained within the sarcolemma, which on…

A colorless transparent mineral, resembling quartz, occurring with castor or castorite on the island of Elba. It is a silicate of alumina and cæsia. Called also pollux.

Positiveness. J. Morley.

The ketone of propionic acid, obtained as a colorless fragrant liquid.

f various organic substances, as glycerin, calcium lactate, etc., and is obtained as a colorless liquid having a sharp, pungent odor. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel.

A colorless gaseous hydrocarbon (C3H6) of the ethylene series, having a garlic odor. It occurs in coal gas, and is produced artificially in various ways. Called also propene.

ids, analogous to the blood of vertebrates. It is often red, but is sometimes green or colorless. -- Pseudhæmal vessels, the blood vessels of annelids.

tic series, metameric with mesitylene and cumene, found in coal tar, and obtained as a colorless liquid.

Attractive; persuasive. J. Morley.

ucel.] [Obs.] Lady or pucelle, that wears mask or fan. B. Jonson. La Pucelle, the Maid of Orleans, Joan of Arc.

tillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaïnes, may be mentioned. See Lutidine.…