pyridine

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pyridine

 [pir´ĭ-dēn]
1. a toxic, colorless, liquid hydrocarbon usually derived from coal tar and used as a laboratory and industrial intermediate.

pyr·i·dine

(pir'i-dēn, -din),
A colorless volatile liquid of empyreumatic odor and burning taste, resulting from the dry distillation of organic matter containing nitrogen; used as an industrial solvent, in analytic chemistry, and for denaturing alcohol.

pyridine

(pĭr′ĭ-dēn′)
n.
A flammable, colorless or yellowish liquid base, C5H5N, having a penetrating odor and serving as the parent compound of many biologically important derivatives. It is used as a solvent and in the manufacture of various agricultural chemicals, rubber products, water repellents, dyes, and drugs.

py·rid′ic (pī-rĭd′ĭk) adj.