The Collaborative International Dictionary of English v.0.48:
Musculature \Mus"cu*la*ture\, n. [Cf. F. musculature.] (Anat.) The muscular system of an animal, or of any of its parts; musculation. [1913 Webster]WordNet (r) 3.0 (2006):
musculature n 1: the muscular system of an organism [syn: muscular structure, musculature, muscle system]