Definify.com
Webster 1913 Edition
Astragalus
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1.
(Anat.)
The ankle bone, or hock bone; the bone of the tarsus which articulates with the tibia at the ankle.
2.
(Bot.)
A genus of papilionaceous plants, of the tribe
Galegeæ
, 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 Astragalus gummifer
and Astragalus verus
.