DIAMETRIC Meaning of DIAMETRIC in English diametric BrE AmE ˌda ɪ ‿ə ˈmetr ɪk ◂▷ diametric|al ə l▷ diametric|ally ə l‿i▶ ˌ dia ˌ metrically op ˈ posed BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012