/ Dictionary / Index G group therapy: Meaning and Definition of Find definitions for: group' ther'apy Pronunciation: [key] psychotherapy in which a number of patients discuss their problems together, usually under the leadership of a therapist, using shared knowledge and experiences to provide constructive feedback about maladaptive behavior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. group theory groupthink Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language