Noun epiphysis has 2 senses
  1. epiphysis - 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
    --1 is a kind of
    long bone, os longum
  2. pineal gland, pineal body, epiphysis cerebri, epiphysis - a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
    --2 is a kind of endocrine gland, endocrine, ductless gland
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