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a combining form meaning “joint,” “jointed,” used in the formation of compound words:
Also, especially before a vowel, arthr-.
Origin of arthro-
< Greek, combining form of árthron a joint; akin to Latin artus (see article) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for arthro-


combining form
indicating a joint: arthritis, arthropod
Word Origin
from Greek arthron
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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Word Origin and History for arthro-

word-forming element meaning "pertaining to the joints," from Greek arthro- (before vowels arth-), comb. form of arthron "joint," from PIE *ar-dhro-, from *ar- "to fit together;" see arm (n.1).

Online Etymology Dictionary, © 2010 Douglas Harper
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arthro- in Medicine

arthro- or arthr-
Joint: arthropathy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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