‖n.; pl. Hypotarsi [ NL. See Hypo-, and Tarsus. ] (Anat.) A process on the posterior side of the tarsometatarsus of many birds; the calcaneal process. -- Hy`po*tar"sal a.

n.; pl. Metatarsi [ NL. See Meta-, and Tarsus. ] (Anat.) That part of the skeleton of the hind or lower limb between the tarsus and phalanges; metatarse. It consists, in the human foot, of five bones. See Illustration in Appendix. [ 1913 Webster ]

‖n.; pl. Tarsometatarsi [ NL. ] (Anat.) The large bone next the foot in the leg of a bird. It is formed by the union of the distal part of the tarsus with the metatarsus. [ 1913 Webster ]

n.; pl. Tarsi [ NL., fr. Gr. &unr_; the flat of the foot, the edge of the eyelid. Cf. 2d Tarse. ] 1. (Anat.) (a) The ankle; the bones or cartilages of the part of the foot between the metatarsus and the leg, consisting in man of seven short bones. (b) A plate of dense connective tissue or cartilage in the eyelid of man and many animals; -- called also tarsal cartilage, and tarsal plate. [ 1913 Webster ]

2. (Zool.) The foot of an insect or a crustacean. It usually consists of form two to five joints. [ 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 ]