WordReference Random House Unabridged Dictionary of American English © 2025
as•trag•a•lus
(a strag′ə ləs),USA pronunciation n., pl. -li (-lī′).USA pronunciation [Zool.]
as•trag′a•lar, adj.
- Zoology(in higher vertebrates) one of the proximal bones of the tarsus;
talus.
- Neo-Latin; see astragal
- 1535–45