Deme'trius
2. A physician called by Galen by the title of
Archiater (
De Antid. 1.1, vol. xiv. p. 4;
De Theriaca ad Pison. 100.12, vol. xiv. p. 261), must have lived in the second century after Christ, as that title was not invented till the reign of Nero. (
Dict. of Ant. s. v. Archiater.) Galen speaks of him as a contemporary.