- 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
- 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
- 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