quadriceps Meaning, Definition & Usage

  1. noun a muscle of the thigh that extends the leg
    quad; quadriceps femoris; musculus quadriceps femoris.

WordNet

Quad"ri*ceps noun
Etymology
NL., fr. L. qyattuor four + caput head.
Definitions
  1. (Anat.) The great extensor muscle of the knee, divided above into four parts which unite in a single tendon at the knee.

Webster 1913