Medical Dictionary
piriformis
noun pir·i·for·mis
Medical Definition of PIRIFORMIS
: a muscle that arises from the front of the sacrum, passes out of the pelvis through the greater sciatic foramen, is inserted into the upper border of the greater trochanter of the femur, and rotates the thigh laterally
Variants of PIRIFORMIS
pir·i·for·mis or pyr·i·for·mis \ˌpir-ə-ˈfȯr-məs\
Illustration of PIRIFORMIS
Seen & Heard
What made you want to look up piriformis? Please tell us where you read or heard it (including the quote, if possible).