β–endorphin\ˌbāt-ə-en-ˈdȯr-fən, chiefly British ˌbē-tə-\play
Medical Definition of beta–endorphin
: an endorphin of the pituitary gland with much greater analgesic potency than morphine that occurs free and as the terminal sequence of 31 amino acids in the polypeptide chain of beta-lipotropin
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