enkephalin
/enˈkefəlɪn/(亦作 encephalin)
noun
- Biochemistry either of two compounds which occur naturally in the brain. They are peptides related to the endorphins, with similar physiological effects.【生化】脑啡肽。
词源
1970s: from Greek enkephalos 'brain' （from en- 'in' + kephalē 'head'） + -IN1 .