Gum arabic Meaning, Definition & Usage

  1. noun gum from an acacia tree; used as a thickener (especially in candies and pharmaceuticals)
    gum acacia.

WordNet

Definitions
  1. , a gum yielded mostly by several species of Acacia (chiefly A. vera and A. Arabica) growing in Africa and Southern Asia; called also gum acacia. East Indian gum arabic comes from a tree of the Orange family which bears the elephant apple.
Definitions
  1. . See under Gum.

Webster 1913