enkephalin

en keph al in |enˈkefəlin ɛnˈkɛfələn | ▶noun Biochemistry either of two compounds that occur naturally in the brain. They are peptides related to the endorphins, with similar physiological effects. ORIGIN 1970s: from Greek enkephalos ‘brain ’ (from en- ‘in ’ + kephalē ‘head ’) + -in 1 .

enkephalin

enkephalin |ɛnˈkɛf (ə )lɪn |(also encephalin ) ▶noun Biochemistry either of two peptide compounds occurring naturally in the brain, related to the endorphins and having similar physiological effects. ORIGIN 1970s: from Greek enkephalos ‘brain ’ (from en- ‘in ’ + kephalē ‘head ’) + -in 1 .