/ Dictionary / Index P picric acid: Meaning and Definition of Find definitions for: pic'ric ac'id Pronunciation: (pī'krō-nī'trik, pī"krō-), [key] — Chem. Chem. a yellow, crystalline, water-soluble, intensely bitter, poisonous acid, CHNO, used chiefly in explosives. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. picric picrite Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language