plural biceps also bicepses
Definition of biceps
: a muscle having two heads: such as
a
or bicep \
ˈbī-ˌsep
\
or biceps brachii \
ˈbī-ˌseps-ˈbrā-kē-ˌī
, ˈbī-ˌseps-ˈbrā-kē-ˌē
\
: the large flexor muscle of the front of the upper arm
Despite a torn left biceps, Holmes used his jab, one of the best in heavyweight history, to win four of the first five rounds.— Jack McCallum … they hold a dumbbell in each hand and do lateral raises with one arm while performing bicep curls with the other.— Chloe Busch The biceps brachii, the rounded muscles that are easily identifiable, consists of a long and short head.— Eric Sternlicht
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Buying Guide
Our Reviews team has selected the best dumbbells.
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share biceps
Time Traveler for biceps
The first known use of biceps was circa 1641
See more words from the same year