epiphysis
1. 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 (Freq. 5) • Derivationally related forms: epiphysial, epiphyseal • Hypernyms: long bone, os longum 2. a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin • Syn: pineal gland, pineal body, epiphysis cerebri • Hypernyms: endocrine gland, endocrine, ductless gland
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