/ Dictionary / Index R reality principle: Meaning and Definition of Find definitions for: real'ity prin"ciple Pronunciation: [key] — Psychoanal. Psychoanal. the motivating force or mechanism by which the child, who has previously sought immediate gratification of all wishes, realizes that gratification must sometimes be deferred or forgone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reality check reality testing Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language