[bey-tuh-en-dawr-fin or, esp. British, bee-]


a potent endorphin released by the anterior pituitary gland in response to pain, trauma, exercise, or other forms of stress.

Origin of beta-endorphin

First recorded in 1975–80 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

beta-endorphin in Medicine



An endorphin produced by the pituitary gland that is a potent pain suppressant.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.