See also: Melatonin

English edit

 
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Etymology edit

Blend of melanin +‎ serotonin.

Pronunciation edit

  • IPA(key): /ˌmɛləˈtoʊnɪn/
  • (file)

Noun edit

melatonin (usually uncountable, plural melatonins)

  1. A hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.
    • 2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), page 310:
      How exactly melatonin relates to sleep is still not understood.
  2. Any material similar in its chemistry and effect to the natural hormone.

Translations edit

Danish edit

 
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Etymology edit

Borrowed from English melatonin.

Noun edit

melatonin c (singular definite melatoninen, not used in plural form)

  1. melatonin

Declension edit