DIATONIC Meaning of DIATONIC in English diatonic BrE AmE ˌda ɪ ‿ə ˈtɒn ɪk ◂ AmE \ -ˈtɑːn-▷ diatonic|ally ə l‿i▶ ˌ dia ˌ tonic ˈ scale BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012