noun
biceps
BEYE-sehps
noun
1
The large muscle on the front of the upper arm that bends the elbow.
"He flexed his biceps in the mirror after months of training."
2
Loosely, the whole upper arm or its visible muscle bulk.
"Years of rowing had given her impressively toned biceps."
How to Use Biceps
Learner’s notesIn plain EnglishThe muscle that curls the arm at the elbow, one of the most commonly flexed and admired arm muscles.
Easily confused with
Common pairings
flex your biceps
biceps curl
Word Forms
biceps plural, bicepses plural, bicipites plural
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Etymology
From Latin biceps, "two-headed," from bis ("twice") plus caput ("head") — so named because the muscle has two points of attachment, or "heads," at the shoulder.