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triceps definition

tri·ceps (trī′seps)

noun pl. triceps -·ceps or tricepses -·cepses

a muscle having three heads, or points of origin; esp., the large muscle at the back of the upper arm that extends the forearm when contracted

Etymology: ModL < L, triple-headed < tri-, tri- + caput, a head

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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