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epiphysis

[ih-pif-uh-sis] /ɪˈpɪf ə sɪs/
noun, plural epiphyses
[ih-pif-uh-seez] /ɪˈpɪf əˌsiz/ (Show IPA).
Anatomy
1.
a part or process of a bone separated from the main body of the bone by a layer of cartilage and subsequently uniting with the bone through further ossification.
Origin
1625-1635
1625-35; < New Latin < Greek epíphysis a growth upon, equivalent to epi- epi- + phýsis growth (phȳ́(ein) to make grow, bring forth, produce + -sis -sis)
Related forms
epiphyseal
[ep-uh-fiz-ee-uh l, ih-pif-uh-see-uh l, -zee-] /ˌɛp əˈfɪz i əl, ɪˌpɪf əˈsi əl, -ˈzi-/ (Show IPA),
epiphysial, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for epiphyses

epiphysis

/ɪˈpɪfɪsɪs/
noun (pl) -ses (-ˌsiːz)
1.
the end of a long bone, initially separated from the shaft (diaphysis) by a section of cartilage that eventually ossifies so that the two portions fuse together
2.
Also called epiphysis cerebri (ˈsɛrɪˌbraɪ) the technical name for pineal gland
Derived Forms
epiphyseal, epiphysial (ˌɛpɪˈfɪzɪəl) adjective
Word Origin
C17: via New Latin from Greek: a growth upon, from epi- + phusis growth, from phuein to bring forth, produce
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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epiphyses in Medicine

epiphysis e·piph·y·sis (ĭ-pĭf'ĭ-sĭs)
n. pl. e·piph·y·ses (-sēz')

  1. The end of a long bone that is originally separated from the main bone by a layer of cartilage but that later becomes united to the main bone through ossification.

  2. See pineal body.


ep'i·phys'i·al (ěp'ə-fĭz'ē-əl) or ep'i·phys'e·al (ěp'ə-fĭz'ē-əl, -fə-sē'əl) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for epiphyses

expanded end of the long bones in animals, which ossifies separately from the bone shaft but becomes fixed to the shaft when full growth is attained. The epiphysis is made of spongy cancellous bone covered by a thin layer of compact bone. It is connected to the bone shaft by the epiphyseal cartilage, or growth plate, which aids in the growth of bone length and is eventually replaced by bone.

Learn more about epiphyses with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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