/ Dictionary / Index V vibrio: Meaning and Definition of Find definitions for: vib•ri•o Pronunciation: (vib'rē-ō"), [key] — pl. -ri•os. any of several comma- or-shaped bacteria of the genus Vibrio, certain species of which are pathogenic for humans and other animals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vibrio (Thesaurus) vibratory vibrionic Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language