<p><strong>noun</strong></p><ul><li>the inner of the two bones of the leg, that extend from the knee to the ankle and articulate with the femur and the talus; shinbone.</li><li>a corresponding bone in a horse or other hoofed quadruped, extending from the stifle to the hock.</li><li>(in insects) the fourth segment of the leg, between the femur and tarsus.</li></ul>