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n. A muscle, especially in the forearm, that effects or assists supination.

n. Any muscle that aids supination

n. A muscle which produces the motion of supination.

n. A muscle which supinates the forearm: opposed to pronator: as, the biceps is a powerful supinator of the forearm.

n. a muscle (especially in the forearm) that produces or assists in supination

"In the humerus, drill-mangabeys, drills and mandrills share a notably broad deltoid plane, a proximally extended supinator crest, a broad flange for the brachialis, and a narrow olecranon process with a deep lateral ridge, and there are also characters in the radius and ulna that unite these monkeys to the exclusion of their close relatives."

muscle    musculus   

supinator brevis    supinator radii brevis    supinator radii longus    supinator longus    supinator ridge of the humerus