adj. 1 of the hip. 2 of or affecting the sciatic nerve. 3 suffering from or liable to sciatica. sciatic nerve the largest nerve in the human body, running from the pelvis to the thigh. sciatically adv.
[ F sciatique f. LL sciaticus f. L ischiadicus f. Gk iskhiadikos subject to sciatica f. iskhion hip-joint ]