a town of European Turkey, Macedonia, in the eyalet and 35 miles N.E. of Salonica, on the Strymon, in a plain rich in cotton and rice, and studded with numerous villages. It is well built and clean, with fine palaces, mosques, and gardens, large bazaars, and public gardens. Cotton-spinning is actively carried on here; and there is an extensive trade in corn, tobacco, and cotton. Seres is one of the most important commercial towns in Turkey. Pop. 30,000.