LEARNit Dictionary
Ordnance Survey map
noun
/ˌɔːdnəns ˈsɜːveɪ mæp/
UK
/ˌɔːrdnəns ˈsɜːrveɪ mæp/
US
1
a very detailed map of an area of Britain or Ireland, prepared by an organization called the
Ordnance Survey
, which is supported by the government
نقشه اوردنانس, نقشه سازمان نقشهبرداری, نقشه تفصیلی