The definition of brawn means developed muscles, or physical strength.
(noun)An example of brawn is the ability to lift 300 pounds.
See brawn in Webster's New World College Dictionary
noun
Origin: ME braun < OFr braon, fleshy or muscular part, buttock < Frank brado, meat, calf (of leg), akin to OHG brato, OE bræde
See brawn in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English, muscle
Origin: , from Old French braon, meat
Origin: , of Germanic origin; see bhreu- in Indo-European roots
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