Origin and Etymology of gluteus maximus
New Latin, literally, largest gluteus
First Known Use: 1831
Medical Definition of gluteus maximus
: the outermost of the three muscles in each buttock that arises from the sacrum, coccyx, back part of the ilium and adjacent structures, that is inserted into the fascia lata of the thigh and the gluteal tuberosity of the femur, and that acts to extend and laterally rotate the thigh
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