/ Dictionary / Index I inhalation: Meaning and Definition of Find definitions for: in•ha•la•tion Pronunciation: (in"hu-lā'shun), [key] — n. an act or instance of inhaling. an inhalant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inhalation (Thesaurus) inhalant inhalator 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