Orexin Definition

ô-rĕksĭn
noun
Either of two neuropeptide hormones synthesized in the hypothalamus that regulate sleep and wakefulness and whose dysfunction causes narcolepsy.
American Heritage Medicine

Other Word Forms of Orexin

Noun

Singular:
orexin
Plural:
orexins

Origin of Orexin

  • Greek orexis appetite (from the view that orexin stimulates appetite anorexia) –in

    From American Heritage Dictionary of the English Language, 5th Edition

Orexin Sentence Examples

  • Malfunction of the orexin system causes narcolepsy in mice, rats, dogs and humans.

  • The honey's glucose level triggers the brain to stop producing the chemical orexin.

  • Orexin is used by the brain to keep you alert.

  • As of the early 2000s, narcolepsy is thought to be an orexin deficiency syndrome; that is, it develops when a person's hypothalamus does not secrete enough orexins to keep the person from falling asleep at inappropriate times.

  • Narcolepsy is sometimes described as an orexin deficiency syndrome.

Find Similar Words

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Words Starting With

OORORE

Words Ending With

NINXIN

Unscrambles

orexin

Words Starting With O and Ending With N

Starts With O & Ends With NStarts With OR & Ends With NStarts With O & Ends With IN

Word Length

6 Letter Words6 Letter Words Starting With O6 Letter Words Ending With N