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Any one of several metameric alkaloids, C5H3N.(CH3)2, of the pyridine series, obtained from bone oil as liquids, and having peculiar pungent odors. These alkaloids are also called respectively dimethyl pyridine, ethyl pyridine, etc.

The acid amide derived from malic acid, as a white crystalline substance metameric with asparagine.

Pertaining to, or designating, an acid of the ethylene series, metameric with fumaric acid and obtained by heating malic acid.

Other; duplicate, corresponding to; resembling; hence, metameric; as, meta-arabinic, metaldehyde.

Any one of several metameric forms of the same substance, or of different substances having the same composition; as, xylene has three metamers, viz., orthoxylene, metaxylene, and paraxylene.

The symmetry of a metameric structure; serial symmetry; the state of being made up of metameres.

efix meaning new, recent, late; and in chemistry designating specifically that variety of metameric hydrocarbons which, when the name was applied, had been recently classified, and in which at least one carbon atom in connected directly with four other carbon atoms; -- contrasted with normal and iso-; as, neopentane; t…

A metameric segment of the cerebro-spinal nervous system.

One of a group of metameric hydrocarbons C9H20 of the paraffin series; -- so called because of the nine carbon atoms in the molecule. Normal nonane is a colorless volatile liquid, an ingredient of ordinary kerosene.

Any one of several metameric unsaturated hydrocarbons (C9H14) of the valylene series.

Any one of a series of metameric, unsaturated hydrocarbons C9H18 of the ethylene series.

Any one of a series of metameric hydrocarbons (C8H16) of the ethylene series. In general they are combustible, colorless liquids.

ce to optics. Optically active, Optically inactive (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. -- Optically positive, Optically nega…

Hydroxybutyric; designating any one of a group of metameric acids (C3H6.OH.CO2H).

Pertaining to, or designating, an organic acid metameric with malic acid.

A hypothetical hydrocarbon, C5H10, metameric with the amylenes, and the nucleus of a large number of derivatives; -- so named because regarded as composed of five methylene residues. Cf. Trimethylene, and Tetramethylene.

Any one of 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.

Either of two metameric nitrogenous hydrocarbon bases, C12H8N2, analogous to phenanthridine, but more highly nitrogenized.

A sweet white crystalline substance, metameric with pyrogallol, and obtained by the decomposition of phloretin, and from certain gums, as catechu, kino, etc. It belongs to the class of phenols. [Called also phloroglucinol.]

A liquid metameric with xylenol, belonging to the class of phenols, and obtained by distilling certain salts of phloretic acid.