- talus, scree - a sloping mass of loose rocks at the base of a cliff
--1 is a kind of geological formation, formation
- anklebone, astragal, astragalus, talus - the bone in the ankle that articulates with the leg bones to form the ankle joint
--2 is a kind of bone, os
--2 is a part of ankle, ankle joint, mortise joint, articulatio talocruralis