endorphin

n. peptide that resembles an opiate that is naturally found in the body and raises the body's pain threshold

Endorphins are endogenous opioid biochemical compounds. They are polypeptides produced by the pituitary gland and the hypothalamus in vertebrates, and they resemble the opiates in their abilities to produce analgesia and a sense of well-being. In other words, they might work as "natural pain killers." Using drugs may increase the effects of the endorphins.
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Endorphin /en·dor·phin/ any of three neuropeptides, a-, ß-, and ?- endorphins; they are amino acid residues of ß-lipotropin that bind to opiate [more]Endorphin - Community and Resources

Noun
1. a neurochemical occurring naturally in the brain and having analgesic properties
(hypernym) neurochemical
(hyponym) beta endorphin

B: (Kimia) endorfin
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B: (Biologi) endorfin
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