gum tragacanth

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gum tragacanth:

see tragacanthtragacanth
or gum tragacanth,
gummy exudation from the leguminous shrub Astragalus gummifer and related pulse family plants of SE Europe and W Asia. It is obtained through incisions in the stem of the plant. The gum is produced chiefly in Iran.
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References in periodicals archive ?
Gum tragacanth and gum arabic have been used for centuries.