triceps

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tri·ceps / ˈtrīˌseps/ • n. (pl. same) Anat. any of several muscles having three points of attachment at one end, particularly (also tri·ceps bra·chi·i / ˈbrākēˌī; -kēˌē; ˈbrak-/ ) the large muscle at the back of the upper arm.

triceps

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triceps A muscle that runs parallel to the humerus and works antagonistically with the biceps, causing the arm to extend. See antagonism; voluntary muscle.

triceps

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triceps having three heads or (of a muscle) points of origin. XVI. — L. triceps, f. TRI- + -ceps, adj. comb. form corr. to caput HEAD.

triceps

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triceps (try-seps) n. a muscle with three heads of origin. t. brachii the muscle that is situated on the back of the upper arm and contracts to extend the forearm. It is the antagonist of the brachialis.