/ Dictionary / Index P primal therapy: Meaning and Definition of Find definitions for: pri'mal ther'apy Pronunciation: [key] — Psychiatry. Psychiatry. a form of psychotherapy in which the patient is encouraged to relive traumatic events, often screaming or crying, in order to achieve catharsis and a breakdown of psychological defenses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. primal scream primaquine Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language