/ Dictionary / Index E expulsion: Meaning and Definition of Find definitions for: ex•pul•sion Pronunciation: (ik-spul'shun), [key] — n. the act of driving out or expelling: expulsion of air. the state of being expelled: The prisoner's expulsion from society embittered him. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expulsion (Thesaurus) expulse expulsive Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language