A combining form used in anatomy to indicate connection with, or relation to, the tibia; as, tibiotarsus, tibiofibular. [ 1913 Webster ]

a. (Anat.) (a) Of or pertaining to both to the tibia and the tarsus; as, the tibiotarsal articulation. (b) Of or pertaining to the tibiotarsus. [ 1913 Webster ]

n.; pl. Tibiotarsi (Anat.) The large bone between the femur and tarsometatarsus in the leg of a bird. It is formed by the union of the proximal part of the tarsus with the tibia. [ 1913 Webster ]