/ Dictionary / Index A azotobacter: Meaning and Definition of Find definitions for: a•zo•to•bac•ter Pronunciation: (u-zō'tu-bak"tur, ā-zō'-), [key] — n. any of several rod-shaped or spherical soil bacteria of the genus Azotobacter, important as nitrogen fixers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. azotize Azotos Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language