EXTERNALITY Meaning of EXTERNALITY in English externalit|y BrE AmE ˌekst ɜː ˈnæl ət |i -ɪt i AmE \ ˌekst ɝː ˈnæl ət̬ |i▷ externalit|ies iz Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012