Astragalus

1. n. See Astragal, 1.
2. n. The ankle bone, or hock bone; the bone of the tarsus which articulates with the tibia at the ankle.
3. n. A genus of papilionaceous plants, of the tribe Galegeae, containing numerous species, two of which are called, in English, milk vetch and licorice vetch. Gum tragacanth is obtained from different oriental species, particularly the A. gummifer and A. verus.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.