Por ‧ ton Down /ˌpɔːtn ˈdaʊn $ ˌpɔːr-/ BrE AmE
a place in the south of England where there is a government ↑ laboratory used for studying chemical weapons and ↑ biological weapons (=weapons that use ↑ bacteria to kill people by giving them diseases)
Por ‧ ton Down /ˌpɔːtn ˈdaʊn $ ˌpɔːr-/ BrE AmE
a place in the south of England where there is a government ↑ laboratory used for studying chemical weapons and ↑ biological weapons (=weapons that use ↑ bacteria to kill people by giving them diseases)
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012