Definition of dorchester:
(n) :
A town and civil parish with a town council in Dorset, southern England, which is the county town (OS grid ref SY6990).
(n) :
A village and civil parish (served by Dorchester-on-Thames Parish Council) in South Oxfordshire district, Oxfordshire, England, on the River Thames (OS grid ref SU5794).
(n) :
A number of places in the United States:
(n) :
A neighbourhood of Boston, Massachusetts.
(n) :
A civil parish and shire town in Westmorland County, New Brunswick, Canada.
(n) :
A town in Thames Centre municipality, Middlesex County, Ontario, Canada.