pineal body

Other forms: pineal bodies

Definitions of pineal body
  1. noun
    a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
    synonyms: epiphysis, epiphysis cerebri, pineal gland
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    type of:
    ductless gland, endocrine, endocrine gland
    any of the glands of the endocrine system that secrete hormones directly into the bloodstream
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