/ Dictionary / Index P pyrazinamide: Meaning and Definition of Find definitions for: pyr•a•zin•a•mide Pronunciation: (pir"u-zin'u-mīd", -mid), [key] — n. Pharm. a substance, CHNO, used in the treatment of tuberculosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pyrargyrite pyrazole 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