ETYM Latin from Greek; orig. the name of a thorny tree found in Egypt; prob. from the root ak to be sharp. Related to Acute.
Any of a large group of shrubs and trees of the genus Acacia of the legume family Leguminosae. Acacias include the thorn trees of the African savanna and the gum arabic tree A. senegal of N Africa, and several North American species of the SW US and Mexico. Acacias are found in warm regions of the world, particularly Australia.
Any of various spiny trees or shrubs of the genus Acacia.