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epiphysis 骺; 骨端; 骨骺 □; 骨端; 骨□ epiphysis n 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 2: a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin [ synonym: { pineal gland}, { pineal body}, { epiphysis cerebri}, { epiphysis}] Pineal \ Pi" ne* al\, a. [ L. pinea the cone of a pine, from pineus of the pine, from pinus a pine: cf. F. pin[' e] ale.] Of or pertaining to a pine cone; resembling a pine cone. [ 1913 Webster] { Pineal gland} ( Anat.), a glandlike body in the roof of the third ventricle of the vertebrate brain; -- called also { pineal body}, { epiphysis}, { conarium}. In some animals it is connected with a rudimentary eye, the so- called pineal eye, and in other animals it is supposed to be the remnant of a dorsal median eye. [ 1913 Webster]
Epiphysis \ E* piph" y* sis\, n.; pl. { Epiphyses}. [ NL., fr. Gr. ' epi` fysis, fr. ' epify` ein to grow upon; ' epi` upon fy` ein to grow.] ( Anat.) ( a) The end, or other superficial part, of a bone, which ossifies separately from the central portion, or { diaphysis}. ( b) The cerebral epiphysis, or pineal gland. See { Pineal gland}, under { Pineal}. [ 1913 Webster]
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