/ Dictionary / Index N nocardia: Meaning and Definition of Find definitions for: no•car•di•a Pronunciation: (nō-kär'dē-u), [key] — n. Bacteriol. any of several filamentous or rod-shaped, aerobic bacteria of the genus Nocardia, certain species of which are pathogenic for humans and other animals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. no-cal nocent Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language