bi·​ceps | \ ˈbī-ˌseps \
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
b usually biceps femoris \ ˈbī-​ˌseps-​ˈfe-​mə-​rəs \ : the large flexor muscle of the back of the upper leg Doctors had found a malignant tumor in her right biceps femoris muscle. … She had surgery at the end of February to have the growth and part of her hamstring muscle removed …— Kelyn Soong

Examples of biceps in a Sentence

Recent Examples on the Web

Jonathan Cooper tore a biceps tendon and needs season-ending surgery; Tony Bergstrom will miss at least two games with a high ankle sprain. Howard Fendrich, The Seattle Times, "Redskins coach Jay Gruden says team ‘discussed’ Kaepernick," 5 Dec. 2018 Major elbow and biceps problems limited Richards to 12 starts the previous two seasons combined. Jeff Miller,, "Four Angels go on disabled list, giving them 15 on it now," 16 June 2018 However, if surgery is not performed, the tendon that was not injured can compensate for the injured tendon and most of the biceps strength can be regained with time and physical therapy. Dr. Harlan Selesnick, miamiherald, "Biceps tendon tear doesn’t always need surgery to be repaired | Miami Herald," 9 Apr. 2018 In this year’s Commonwealth Games, Mr. Etoundi won a bronze medal in weight lifting for Australia, tearing a biceps muscle in the process. New York Times, "The Case of the Disappearing Athletes," 29 May 2018 Cabrera first injured his the biceps on April 29 and missed three games. George Sipple, Detroit Free Press, "Detroit Tigers' Miguel Cabrera to miss rest of 2018 season," 12 June 2018 Last season, Syndergaard refused a magnetic resonance imaging examination on his sore right biceps, tore his right latissimus in his next start and missed the next four and a half months. James Wagner, New York Times, "Old Pest Torments Mets: The Injury Bug," 31 May 2018 Georgia scraped its way into the World Series despite losing ace pitcher Brittany Gray to a right biceps injury for the last half of the season. Cliff Brunt,, "Florida State tops No. 1 seed Oregon in WCWS elimination game," 3 June 2018 Or that rookie infielder Scott Kingery was out with a bruised and swollen right biceps after being hit by a pitch one night earlier. Scott Lauber,, "Aaron Nola cements ace status, stops Phillies' skid by dominating Marlins," 4 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biceps.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of biceps

circa 1641, in the meaning defined above

History and Etymology for biceps

New Latin bicipit-, biceps, from Latin, two-headed, from bi- + capit-, caput head — more at head

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Statistics for biceps

Last Updated

21 Dec 2018

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Time Traveler for biceps

The first known use of biceps was circa 1641

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More Definitions for biceps



English Language Learners Definition of biceps

: a large muscle at the front of the upper arm


bi·​ceps | \ ˈbī-ˌseps \
plural biceps also bicepses

Kids Definition of biceps

: a large muscle of the front of the upper arm


bi·​ceps | \ ˈbī-ˌseps \
plural biceps also bicepses

Medical Definition of biceps

: a muscle having two heads: as

a also biceps brachii \ -​ˈbrā-​kē-​ˌē, -​ˌī \

or biceps flexor cubiti \ -​ˈflek-​ˌsȯr-​ˈkyü-​bə-​ˌtī, -​bət-​ē \ : the large flexor muscle of the front of the upper arm arising by its short head from the coracoid process and by its long head from the upper margin of the glenoid cavity and being inserted into the tuberosity of the radius
b or biceps femoris \ -​ˈfē-​mə-​rəs, -​ˈfem-​ə-​ \ also biceps flexor cruris : the large flexor muscle of the back of the upper leg that arises by its long head from the tuberosity of the ischium and by its short head from the shaft of the femur, that is inserted into the head of the fibula, its tendon forming the outer hamstring, and that flexes the leg on the thigh and extends the thigh on the trunk

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More from Merriam-Webster on biceps

Rhyming Dictionary: Words that rhyme with biceps

Spanish Central: Translation of biceps

Nglish: Translation of biceps for Spanish Speakers

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