-ləs noun
Etymology: probably New Latin, from Greek astragalos
1. plural astraga·li -ˌlī, -ˌlē : one of the proximal bones of the tarsus of the higher vertebrates supposed to represent the united tibiale and intermedium of many lower vertebrates — usually called in man talus or anklebone ; see talus
2. capitalized
[New Latin, from Latin, milk vetch, from Greek astragalos ]
: a large genus of herbs and shrubs (family Leguminosae) characterized by the narrow standard of the corolla, the blunt keel, and the fleshy or papery uninflated pod — see locoweed , milk vetch , tragacanth
3. plural astragali or astragaluses
[Latin, from Greek astragalos ]
: astragal 1