gluteus maximus

[ mak-suh-muhs ]
/ ˈmæk sə məs /

noun, plural glutei max·i·mi [mak-suh-mahy]. /ˈmæk səˌmaɪ/.

the broad, thick, outermost muscle of the buttocks, involved in the rotation and extension of the thigh.
Facetious. the buttocks.

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Origin of gluteus maximus

1900–05; <New Latin: largest gluteus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for gluteus maximus

gluteus maximus
[ măksə-məs ]

n.

A muscle with origin from the ilium, the sacrum and the coccyx, and the sacrotuberous ligament, with insertion to the iliotibial band of the broad fascia and the gluteal ridge of the femur, with nerve supply from the inferior gluteal nerve, and whose action extends the thigh.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.