a celebrated Greek physician of the 13th century, and the first Greek author who has treated of mild purgatives, such as cassia, manna, sena, &c. He is the first also who mentions distilled waters. His works were printed in one volume folio, by Henry Stephens in 1567.

or ACTARIUS, a notary or officer appointed to write the acts or proceedings of a court, or the like. In the Eastern empire, the actarii were properly officers, who kept the military accounts, received the corn from the susceptores or storekeepers, and delivered it to the soldiers.