quadriceps quad·ri·ceps (kwŏd'rĭ-sěps')
The large four-part extensor muscle at the front of the thigh. adj.
Having four heads, said of certain muscles.
|quadriceps (kwŏd'rĭ-sěps') Pronunciation Key
The large, four-part muscle at the front of the thigh that arises in the hip and pelvis and inserts as a strong tendon below the kneecap (patella). The quadriceps straightens and helps stabilize the knee.