ACRON, a celebrated physician of Agrigentum, in Sicily, who lived about the middle of the fifth century before Christ. He first thought of lighting large fires, and purifying the air with perfumes, to put a stop to the pestilence that ravaged Athens, and which was attended with success. He wrote two treatises, according to Suidas, in the Doric dialect; the one on physic, and the other on abstinence or diet.