biceps

noun

1. Any muscle having two heads.

   “The leg is bent by the action of the flexor muscles situated on the back of the thigh, the chief of these being called the biceps of the leg.”

2. Specifically, the biceps brachii, the flexor of the elbow.

   “The arm muscles are the show muscles of the physique. When someone asks to "see your muscles," they are most likely referring to your arms, and more specifically, your biceps.”

3. (informal)The upper arm, especially the collective muscles of the upper arm.

   “Today, Stonewall's flexed biceps measure 18 inches around.”

   “Biting her lip, she held his biceps for balance and waded farther.”

   “Odin examined the arm-ring, then pushed it onto his arm, up high on his biceps.”

4. A point in a metrical pattern that can be filled either with one long syllable (a longum) or two short syllables (two brevia).

   “Also it is advisable to distinguish this ( ˘ ˘ ) — ˘ ˘ — rhythm, where the princeps was probably shorter in duration than the biceps (as in the dactylic hexameter), from true (marching) anapaests, in which they were equal.”

   “This means that in the metrical sequence[…] recited in ordinary speech rhythm, the princeps occupied a slightly shorter time than the biceps (5:6), and if a long syllable was used to fill the biceps it had to be dragged a little[…]”