Pronunciation: (roch'es-tur, -u-stur),[key] —n. 1. John Wilmot,2nd Earl of, 1647–80, English poet and courtier.
2. a city in W New York, on the Genesee River. 241,741.
3. a town in SE Minnesota. 57,890.
4. a city in N Kent, in SE England. 55,460.
5. a city in SE New Hampshire. 21,560.