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[ip-suh-lat-er-uh l] /ˌɪp səˈlæt ər əl/
adjective, Anatomy
pertaining to, situated on, or affecting the same side of the body:
ipsilateral paralysis.
Compare contralateral.
Origin of ipsilateral
1905-10; < Latin ipsi- (combining form of ipse oneself, the very one) + lateral
Related forms
ipsilaterally, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ipsilateral
  • No risk increase was found for ipsilateral phone use for tumors located in the temporal and parietal lobes.
British Dictionary definitions for ipsilateral


on or affecting the same side of the body
Word Origin
C20: irregularly formed from Latin ipse self + lateral
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 ipsilateral

1907, from Latin ipse "self" + lateral.

Online Etymology Dictionary, © 2010 Douglas Harper
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ipsilateral in Medicine

ipsilateral ip·si·lat·er·al (ĭp'sə-lāt'ər-əl)
Located on or affecting the same side of the body.

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