nalidixic acid: Meaning and Definition of

na'li•dix'ic ac'id

Pronunciation: (nā'li-dik'sik, nā"-), [key]
— Pharm. Pharm.
  1. a substance, CHNO, that has antibacterial activity against many susceptible Gram-negative organisms, esp. used in the treatment of urinary tract infections.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.