Talus n. : The astragalus.

Talus n. : A variety of clubfoot (Talipes calcaneus). See the Note under Talipes.

Talus n. : A slope; the inclination of the face of a work.

Talus n. : A sloping heap of fragments of rock lying at the foot of a precipice.

Example:
Will my rook and Talus piercings stay open during surgery?

Taxonomy
talus bone, bone, articulation, trochlea, stability, body, free encyclopedia, Thieme, tarsus, astragalus, bones in the human body, navicular bone, articular surfaces, malleoli, tarsometatarsal articulations, tibia and fibula, shape, guarantees.

Defination from the web:
talus bone or astragalus is a bone in the tarsus of the foot that forms the lower part of the ankle joint through its articulations with the ... Exceptionally, the lateral of these tubercles forms an independent bone called os trigonum or "accessory talus" ...