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Meaning of gluteus maximus

glu'teus max'i•mus

Pronunciation: (mak'su-mus), [key]
— pl. glutei max•i•mi
  1. the broad, thick, outermost muscle of the buttocks, involved in the rotation and extension of the thigh.
  2. the buttocks.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.