epiphysis

/əˈpɪfəsəs/
IPA guide

Other forms: epiphyses

Definitions of epiphysis
  1. noun
    the end of a long bone; initially separated from the main bone by a layer of cartilage that eventually ossifies so the parts become fused
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    type of:
    long bone, os longum
    in limbs of vertebrate animals: a long cylindrical bone that contains marrow
  2. noun
    a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
    synonyms: epiphysis cerebri, pineal body, 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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