/ Dictionary / Index A astragalus: Meaning and Definition of Find definitions for: as•trag•a•lus Pronunciation: (a-strag'u-lus), [key] — pl. -li (in higher vertebrates) one of the proximal bones of the tarsus; talus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: astragalus (Thesaurus) astragal astrakhan Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language