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Definition of Biceps

Biceps: A muscle that has two heads, or origins. There is more than one biceps muscle. The biceps brachii is the well-known flexor muscle in the upper arm; it bulges when the arm is bent in a C-shape with the fist toward the forehead. The biceps femoris is in the back of the thigh.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012

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