Definition of sciatic adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//saɪˈætɪk//
; NAmE NAmE//saɪˈætɪk//
[only before noun] (anatomy)
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of the hip or of the nerve which goes from the pelvis to the thigh (= the sciatic nerve) Word Originearly 16th cent. (as a noun denoting sciatica): from French sciatique, via late Latin from Greek iskhiadikos ‘relating to the hips, subject to sciatica’, from iskhion ‘hip joint’.
See the Oxford Advanced American Dictionary entry: sciatic