ACA'CIA, noun [Latin acacia a thorn, from Gr., a point.]
Egyptian thorn, a species of plant ranked by Linne under the genus mimosa, and by others, made a distinct genus. Of the flowers of one species, the Chinese make a yellow dye which bears washing in silks, and appears with elegance on paper.
ACACIA, in medicine, is a name given to the inspissated juice of the unripe fruit of the Mimosa Nilotica, which is brought from Egypt in roundish masses, in bladders.
Externally, it is of a deep brown color; internally, of a reddish or yellowish brown; of a firm consistence, but not very dry. It is a mild astringent. But most of the drug which passes under this name, is the inspissated juice of sloes.
ACACIA, among antiquaries, is a name given to something like a roll or bag, seen on medals, as in the hands of emperors and consuls. Some take it to represent a handkerchief rolled up, with which signals were given at the games; others, a roll of petitions; and some, a purple bag of earth, to remind them of their mortality.