— pyridic /puy rid"ik/ , adj.
/pir"i deen', -din/ , n. Chem.
a colorless, flammable, liquid organic base, C 5 H 5 N, having a disagreeable odor, usually obtained from coal or synthesized from acetaldehyde and ammonia: used chiefly as a solvent and in organic synthesis.
[ 1850-55; PYR- + -ID 3 + -INE 2 ]