beta-endorphin

noun
be·​ta-en·​dor·​phin | \ˈbā-tə-en-ˈdȯr-fən \

Definition of beta-endorphin 

: an endorphin of the pituitary gland having a much greater analgesic potency than morphine

First Known Use of beta-endorphin

1976, in the meaning defined above

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The first known use of beta-endorphin was in 1976

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beta-endorphin

noun
be·​ta-en·​dor·​phin
variants: or β-endorphin \ ˌbāt-​ə-​en-​ˈdȯr-​fən, chiefly British ˌbē-​tə-​ \

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

More from Merriam-Webster on beta-endorphin

Britannica.com: Encyclopedia article about beta-endorphin

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