a. of, relating to, or constituting muscle
b. of, relating to, or performed by the muscles
2. having well-developed musculature
a. of or relating to physical strength ; brawny
b. having strength of expression or character ; vigorous <muscular prose> c. characterized by forcefulness or resolve <muscular foreign policy> d. full-bodied <muscular wines> • muscularity noun • muscularly adverb
New Collegiate Dictionary. 2001.