astragalus
Syllabification: (as·trag·a·lus)
Pronunciation: /əˈstragələs/
Definition of astragalus
noun ( plural astragali /-ˌlī/)
chiefly Zoology- another term for talus1.
Origin:
mid 16th century: via Latin from Greek astragalos 'ankle bone, molding', also the name of a vetch