piriformis

Etymology
, ..

Noun

 * 1)  A gluteal muscle which arises from the front of the sacrum and the ischium or sacrotuberous ligament, passes out of the pelvis through the greater sciatic foramen, and inserts into the greater trochanter of the femur, serving in humans to rotate the thigh laterally.

Translations

 * Chinese:
 * Mandarin: 梨狀肌
 * Japanese: 梨状筋

Etymology
From.

Adjective

 * 1) pear-shaped, pyriform