A roll or bag, filled with dust, borne by Byzantine emperors, as a memento of mortality. It is represented on medals.
- Any of various often spiny trees or shrubs of the genus Acacia in the pea family, having alternate, bipinnately compound leaves or leaves represented by flattened leafstalks and heads or spikes of small flowers.
- Any of several other leguminous plants, such as the rose acacia.
- See gum arabic.