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Astragalus gummifer
(gcide) | Tragacanth \Trag"a*canth\, n. [L. tragacanthum tragacanth,
tragacantha the plant producing tragacanth, Gr. ? ? a he-goat
+ ? a thorn: cf. F. tragacanthe.]
A kind of gum procured from a spiny leguminous shrub
(Astragalus gummifer) of Western Asia, and other species of
Astragalus. It comes in hard whitish or yellowish flakes or
filaments, and is nearly insoluble in water, but slowly
swells into a mucilaginous mass, which is used as a
substitute for gum arabic in medicine and the arts. Called
also gum tragacanth.
[1913 Webster] |
Astragalus gummifer
(gcide) | Astragalus \As*trag"a*lus\, n. [L. See Astragal.]
1. (Anat.) The ankle bone, or hock bone; the bone of the
tarsus which articulates with the tibia at the ankle.
[1913 Webster]
2. (Bot.) A genus of papilionaceous plants, of the tribe
Galege[ae], 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.
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3. (Arch.) See Astragal, 1.
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