Definition of orexin in English:


Syllabification: o·rex·in
Pronunciation: /ôˈreksin/

Entry from US English dictionary


  • Either of two hormones ( orexin-A or orexin-B) produced by the mammalian hypothalamus and functional in the regulation of appetite and sleep. Also called hypocretin.

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Word of the day kerf
Pronunciation: kəːf
a slit made by cutting with a saw