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Definitions of melatonin
  1. noun
    hormone secreted by the pineal gland
Definition that contains melatonin
  • pineal gland a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
  • epiphysis cerebri a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
  • melanoderma abnormally dark skin caused by increased deposits of melatonin
  • pineal body a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
  • epiphysis a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
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