piriformis

noun

pir·​i·​for·​mis
variants or pyriformis
: 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

Dictionary Entries Near piriformis

Cite this Entry

“Piriformis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/piriformis. Accessed 5 Mar. 2024.

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