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[dahy-af-uh-sis] /daɪˈæf ə sɪs/
noun, plural diaphyses
[dahy-af-uh-seez] /daɪˈæf əˌsiz/ (Show IPA).
the shaft of a long bone.
Origin of diaphysis
1825-35; < New Latin < Greek, equivalent to diaphȳ́(esthai) to grow between + -sis -sis
Related forms
diaphysial, diaphyseal
[dahy-uh-fiz-ee-uh l] /ˌdaɪ əˈfɪz i əl/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for diaphysis


noun (pl) -ses (-ˌsiːz)
the shaft of a long bone Compare epiphysis
Derived Forms
diaphysial (ˌdaɪəˈfɪzɪəl) adjective
Word Origin
C19: New Latin, from Greek diaphusis, from diaphuesthai to grow between, from dia- + phuein to 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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diaphysis in Medicine

diaphysis di·aph·y·sis (dī-āf'ĭ-sĭs)
n. pl. di·aph·y·ses (-sēz')
The shaft of a long bone.

di'a·phys'i·al (dī'ə-fĭz'ē-əl) or di·aph'y·se'al (dī-āf'ĭ-sē'əl, dī'ə-fĭz'ē-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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