tarsus

The section of the vertebrate foot between the leg and the metatarsus.

The bones making up this section, especially the seven small bones of the human ankle.

A fibrous plate that supports and shapes the edge of the eyelid.

The tarsometatarsus.

The distal part of the leg of an arthropod, usually divided into segments.

In zoology and anatomy, the proximal segment of the pes or foot, corresponding to the carpus of the manus or hand; the collection of bones between the tibia and the metatarsus, entering into the construction of the ankle-joint, and into that part of the foot known in man as the instep.

Hence In descriptive ornith., the shank; the part of the leg (properly of the foot) of a bird which extends from the bases of the toes to the first joint above, the principal bone of this section consisting of three metatarsal bones fused together and with distal tarsal bones. See cuts under booted, scutellate, and tarsometatarsus.

In entomology: The foot; the terminal segment of any leg, next to and beyond the tibia, consisting of a variable number of joints, usually five, and ending sometimes in a pair of claws like pincers, or in a suckerlike pad, or otherwise.