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one of the paired limbs of an animal used for support of the body and for locomotion. Properly, the human leg is that portion of the extremity between the foot and the thigh. This section of the human leg contains two long bones, the tibia and the fibula.
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in arthropods, a segment of the leg that is movably joined to the femur (in insects) or the patella (in arachnids) and bears the tarsus on its end. usually segmented.
The larger of the two leg bones, articulating with the femur, fibula, and talus.
1. the inner and thicker of the two bones of the human leg between the knee and ankle
2. the corresponding bone in other vertebrates
3. the fourth segment of an insect's leg, lying between the femur and the tarsus