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The Collaborative International Dictionary
Glutaeus

Glutaeus \Glu*t[ae]"us\, n. [NL. See Gluteal.] (Anat.) The great muscle of the buttock in man and most mammals, and the corresponding muscle in many lower animals.

Note: In man, the glut[ae]us is composed of three distinct parts, which extend and abduct the thigh, and help support the body in standing.

Wiktionary
glutaeus

n. (alternative form of gluteus English)