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 formssci·at·i·cal·ly, adverbnon·sci·at·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sciatic

Historical Examples of sciatic

  • It was too near the head of the sciatic nerve, and hurt him unusually.

    Shadows of Flames

    Amelie Rives

  • But after he had been about for two days, back came the sciatic pains.

    Shadows of Flames

    Amelie Rives

  • His face was flushed with that drilling anguish in his sciatic nerve.

    Shadows of Flames

    Amelie Rives

  • Appearance of epilepsy also in animals born of parents having been rendered epileptic by the section of the sciatic nerve.

  • She suffered greatly from sciatic rheumatism, inherited from several generations.

    Praying for Money

    Russell H. Conwell

British Dictionary definitions for sciatic



anatomy of or relating to the hip or the hipbone
of, relating to, or afflicted with sciatica

Word Origin for sciatic

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

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

sciatic in Medicine




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