/ Dictionary / Index R restrictionism: Meaning and Definition of Find definitions for: re•stric•tion•ism Pronunciation: (ri-strik'shu-niz"um), [key] — n. a policy, esp. by a national government or legislative body, of enacting restrictions on the amount of imported goods, immigration, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. restriction fragment restriction play Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language