/ saɪˈætɪk; NAmE / adjective
[ only before noun ] ( anatomy ) of the hip or of the nerve which goes from the pelvis to the thigh (= the sciatic nerve )
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WORD ORIGIN
early 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.