Breadcrumb Home > 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: donnybrook Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language