parvoline

Century Dictionary and Cyclopedia

1. n. Tetramethylpyri-dine, C₅HN(CH₃)₄. Of the several isomeric varieties, the principal one is 2,3,4,5-tetra-methylpyridine, an oil which occurs in coal-tar. Other varieties are made by distilling bituminous shales, heating cinchonine with potash, or by the decay of horse-fiesh or mackerel. They are basic oils which form salts with acids.

Wiktionary

1. n. organic chemistry A base of the pyridine group, found in coal tar.
2. n. organic chemistry Any of the series of isometric substances of which parvoline is the type.

GNU Webster's 1913

1. n. (Chem.) A liquid base, C9H13N, of the pyridine group, found in coal tar; also, any one of the series of isomeric substances of which it is the type.