/ Dictionary / Index B beta-endorphin: Meaning and Definition of Find definitions for: be•ta-en•dor•phin Pronunciation: (bā"tu en-dôr'fin or, esp. Brit., bē"-), [key] — n. a potent endorphin released by the anterior pituitary gland in response to pain, trauma, exercise, or other forms of stress. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: beta-endorphin (Thesaurus) Betadine beta function Related Content Daily Word Quiz: leonine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language