formerly Mychek, a town of Russia, in the government of Kiev, 31 m. W. of the city of Kiev, on the Teterev river. Pop. 18,154. It is a very old town, being mentioned in 1150; from 1746 to 1795 it was the residence of the metropolitan of the United Greek Church. It has tanneries and flour-mills, and exports timber, corn and mushrooms.