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Definition of quadriceps
quadriceps
/ˈkwɑːdrɪsɛps/
quad · ri · ceps
Plural:quadriceps
•Adjective:quadricipital
quadriceps Lexical Profile
CEFR
C1
Grade
9
Tier
2
Usage
Top 10k
Syllables
3
quadriceps Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The large, four-part extensor muscle group at the front of the thigh that acts to extend the knee and flex the hip.
Example
"The physical therapist recommended targeted squats and lunges to strengthen the athlete's injured quadriceps."
Synonyms
View all synonyms for quadricepsWord Nuance & Usage
Although ending in '-s', 'quadriceps' is a singular noun (from the Latin for 'four-headed') and takes a singular verb when referring to the muscle group of a single leg; its plural can be either 'quadriceps' or 'quadricepses'.
• Nearby Words
Word Origin & Etymology
Borrowed in the 19th century from Modern Latin 'quadriceps' (short for 'quadriceps femoris'), from Latin 'quadri-' ('four') and '-ceps' ('-headed', from 'caput', meaning 'head'), referring to the four distinct muscle bellies that form the muscle group.
Cite this Entry
Wordmom. (2026). Definition of Quadriceps. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/quadriceps