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Definition of triceps

triceps

/ˈtraɪ.sɛps/
tri · ceps
Plural:tricepses
•
Adjective:tricipital
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triceps Lexical Profile

triceps Game Scores & Validity

• noun

1

A large skeletal muscle with three heads or points of origin, especially the muscle running along the back of the upper arm that extends the forearm at the elbow.

Example

"The physical therapist recommended gentle resistance exercises to strengthen his injured triceps."

Word Nuance & Usage

Although ending in '-s', 'triceps' is both the standard singular and plural form; in informal speech, the back-formation 'tricep' is frequently used for the singular.

• Nearby Words

tributary
tribute
tricentennial
triceps
triceratops
trichosanthes
tricities

Word Origin & Etymology

Borrowed in the late 16th century from Latin triceps ('three-headed'), formed from tri- ('three') and -ceps (derived from caput, meaning 'head'), referring to the muscle's three points of origin.

Cite this Entry

Wordmom. (2026). Definition of Triceps. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/triceps
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