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[sahy-at-ik] /saɪˈæt ɪk/
adjective, Anatomy
of, pertaining to, situated near, or affecting the ischium or back of the hip.
affecting the hip or the sciatic nerves.
a sciatic part, as a nerve, vein, or artery.
Origin of sciatic
1535-45; < Medieval Latin sciaticus, alteration of Greek ischiadikós ischiadic
Related forms
sciatically, adverb
nonsciatic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for sciatic
  • The pain has recently proceeded down my back to the lower back and sciatic pain.
  • It is caused by injury to or pressure on the sciatic nerve.
  • The peroneal nerve is a branch of the sciatic nerve, which supplies movement and sensation to the lower leg, foot and toes.
  • It occurs when there is damage to the tibial nerve, one of the lower branches of the sciatic nerve of the leg.
  • But during the operation, his sciatic nerve had been clipped.
  • When the sciatic nerve is involved, the symptom complex is called sciatica.
British Dictionary definitions for sciatic


(anatomy) of or relating to the hip or the hipbone
of, relating to, or afflicted with sciatica
Word Origin
C16: from French sciatique, from Late Latin sciaticus, from Latin ischiadicus relating to pain in the hip, from Greek iskhiadikos, from iskhia hip joint
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 sciatic

"pertaining to the hip," also in reference to the large nerve from the pelvis to the thigh, 1540s, from Middle French sciatique (14c.), from Medieval Latin sciaticus (see sciatica).

Online Etymology Dictionary, © 2010 Douglas Harper
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sciatic in Medicine

sciatic sci·at·ic (sī-āt'ĭk)

  1. Of or relating to the ischium or to the region of the hipbone in which it is located.

  2. Of or relating to sciatica.

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