A*ca"ci*a (&?;), n. (Antiq.) A roll or bag, filled with dust, borne by Byzantine emperors, as a memento of mortality. It is represented on medals.

A*ca"cia (&?;), n.; pl. E. Acacias (&?;), L. Acaciæ (&?;). [L. from Gr. &?;; orig. the name of a thorny tree found in Egypt; prob. fr. the root ak to be sharp. See Acute.] 1. A genus of leguminous trees and shrubs. Nearly 300 species are Australian or Polynesian, and have terete or vertically compressed leaf stalks, instead of the bipinnate leaves of the much fewer species of America, Africa, etc. Very few are found in temperate climates.

2. (Med.) The inspissated juice of several species of acacia; -- called also gum acacia, and gum arabic.

• (Antiquities): A roll or bag, filled with dust, borne by Byzantine emperors, as a memento of mortality. It is represented on medals.
  
• a shrub or tree of a species that belongs to the genus Acacia, is believed to belong to this genus, or once belonged to the genus.
  
• (Medicine): The inspissated juice of several species of Acacia s.l.; -- called also gum acacia, and gum arabic.
  
  Dutch
• a shrub or tree of a species that belongs to the genus Acacia, is believed to belong to this genus, or once belonged to the genus. In practice it will refer to Robinia pseudoacacia.
  
  Latin
• A shrub of tree of the genus Acacia.
  
• The juice of gum of this plant.
  
  Romanian
• shrubs or trees of the genus Acacia.
  

Translingual
• (botany) A botanical name at the rank of genus - in the family Leguminosae or Mimosaceae. Circumscription of the genus is quite controversial.
  
• (botany) An epithet in a botanical name at the rank between species and genus, a name which applies to a subdivision of the genus Acacia.