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Dictionary

pyr•i•dine

Pronunciation: (pir'i-dēn", -din), [key]
—n. Chem.
a colorless, flammable, liquid organic base, C₅H₅N, having a disagreeable odor, usually obtained from coal or synthesized from acetaldehyde and ammonia: used chiefly as a solvent and in organic synthesis.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Pyribenzamine

Pyridium

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