collidine

noun

col·li·dine | \ ˈkäləˌdēn, -də̇n\

plural -s

Definition of collidine

: any of a number of organic bases C₈H₁₁N that are the trimethyl, methyl-ethyl, and propyl homologues of pyridine, that are in general pungent oily poisonous liquids, and are obtained chiefly as by-products in the coking process or are synthesized: such as

a : the liquid symmetrical trimethyl homolog made by reaction of acetone and ammonia and used as a solvent in chromatography

— called also s-collidine, 2,4,6-collidine, 2,4,6-trimethylpyridine

b : methylethylpyridine

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