A man flexes his biceps.
Examples of biceps are the muscles that flex the forearms.
- a muscle having two heads, or points of origin; esp., the large muscle in the front of the upper arm or the corresponding muscle at the back of the thigh
- loosely strength or muscular development, esp. of the arm
Origin of bicepsModern Latin ; from Classical Latin ; from bis, two + caput, head
- A muscle with two heads or points of origin.
- a. The large muscle at the front of the upper arm that flexes the forearm. Also called biceps brachii.b. The large muscle at the back of the thigh that flexes the knee joint. Also called biceps femoris.
Origin of bicepsFrom Latin, two-headed : bi-, two; see bi–1 + caput, head; see kaput- in Indo-European roots.
left: biceps relaxed to extend forearm
right: biceps contracted to raise forearm
(plural biceps or bicepses)
- (anatomy) Any muscle having two heads.
- Specifically, the biceps brachii, the flexor of the elbow.
- (informal) The upper arm, especially the collective muscles of the upper arm.
- (prosody) A point in a metrical pattern that can be filled either with one long syllable (a longum) or two short syllables (two brevia)
- biceps brachii
- biceps cubiti
- biceps femoris