Deme \Deme\ (d[=e]m), n. [Gr. dh^mos.] 1. (Gr. Antiq.) A territorial subdivision of Attica (also of modern Greece), corresponding to a township. --Jowett (Thucyd.). [1913 Webster] 2. (Biol.) An undifferentiated aggregate of cells or plastids. [1913 Webster]