/ Dictionary / Index R reinforcement therapy: Meaning and Definition of Find definitions for: reinforce'ment ther"apy Pronunciation: [key] — Psychol. Psychol. a behavior modification technique in which appropriate behavior is strengthened through systematic reinforcement. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reinforcement Reinhardt Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language