gum arabic

gum ar·a·bic

noun \-ˈar-ə-bik\

Definition of GUM ARABIC

: a water-soluble gum obtained from several leguminous plants of the genus Acacia (especially A. senegal and A. arabica) and used especially in pharmacy to suspend insoluble substances in water, to prepare emulsions, and to make pills and lozenges—called also acacia, gum acacia