/ Dictionary / Index I interventionism: Meaning and Definition of Find definitions for: in•ter•ven•tion•ism Pronunciation: (in"tur-ven'shu-niz"um), [key] — n. the policy or doctrine of intervening, esp. government interference in the affairs of another state or in domestic economic affairs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. intervention intervertebral Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language