/ Dictionary / Index V ventilation: Meaning and Definition of Find definitions for: ven•ti•la•tion Pronunciation: (ven"tl-ā'shun), [key] — n. the act of ventilating. the state of being ventilated. facilities or equipment for providing ventilation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ventilation (Thesaurus) ventilate ventilationist 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