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biceps

American  
[bahy-seps] / ˈbaɪ sɛps /

noun

Anatomy.

plural

bicepses, biceps

  1. either of two flexor muscles, one biceps brachii located in the front of the upper arm and assisting in bending the arm, and the other biceps femoris located on the back of the thigh and assisting in bending the leg.

biceps British  
/ ˈbaɪsɛps /

noun

  1. anatomy any muscle having two heads or origins, esp the muscle that flexes the forearm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
biceps Scientific  
/ bī′sĕps′ /

  1. Either of two muscles, biceps brachii of the arm or biceps femoris of the leg, each with two points of origin. The biceps of the arm bends the elbow, while the biceps of the leg helps to bend the knee as part of the hamstring.

Etymology

Origin of biceps

1625–35; < Latin: two-headed, having two parts, equivalent to bi- bi- 1 + -ceps (stem -cipit- ), combining form of caput head

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Vocabulary lists containing biceps

Physical Education - Middle School and High School

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Human Anatomy and Physiology - High School

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In one memorable photo, Trump’s ankles appear downright sausagelike, impressively achieving a diameter that can, I think, realistically rival Hulk Hogan’s biceps.

From Slate • Jul. 18, 2025

Quaid doesn’t have Statham’s biceps, but for my money, he doesn’t need them.

From Los Angeles Times • Mar. 13, 2025

After weeks of workouts, Andrews told Mara to show anyone entering the weight room his biceps, prompting an obligatory flex.

From Los Angeles Times • Jan. 12, 2025

The video also shows Sweeney flexing her biceps.

From Salon • Dec. 16, 2024

He towelled himself vigorously, making the muscles of his biceps ripple, then he sat down on the rocks and reached for his pipe.

From "Boy: Tales of a Childhood" by Roald Dahl

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.