tragacanth
noun
trag·a·canth ˈtra-jə-ˌkan(t)th 
ˈtra-gə-,
-kən(t)th also ˈtra-gə-ˌsan(t)th
: a gum obtained from various Asian or eastern European plants (genus Astragalus and especially A. gummifer) of the legume family that swells in water and is used chiefly as an emulsifying, suspending, or thickening agent
Example Sentences
Recent Examples on the Web All were molded out of a powdered sugar paste likely made with rose and orange blossom water and tragacanth, a resin from a plant indigenous to the Middle East and Asia: the yields of trade and Western expansion. 
New York Times, 11 Aug. 2021
New York Times, 11 Aug. 2021 Word History
Etymology
Middle French tragacanthe, from Latin tragacantha, from Greek tragakantha, from tragos goat + akantha thorn
First Known Use
1558, in the meaning defined above
Phrases Containing tragacanth
Medical Definition
tragacanth
noun
trag·a·canth
ˈtraj-ə-ˌkan(t)th, ˈtrag-, -kən(t)th; also ˈtrag-ə-ˌsan(t)th
: a gum obtained from various Asian or East European leguminous plants (genus Astragalus and especially A. gummifer) that swells in water and is used as an emulsifying, suspending, and thickening agent and as a demulcent
called also gum tragacanth, hog gum
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