/ Dictionary / Index O omnidirectional: Meaning and Definition of Find definitions for: om•ni•di•rec•tion•al Pronunciation: (om"nē-di-rek'shu-nl), [key] — adj. Electronics. sending or receiving signals in all directions: an omnidirectional microphone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: omnidirectional (Thesaurus) omnibus clause omnidistance Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language