DIATONIC


Meaning of DIATONIC in English

[ ˌdʌɪə'tɒnɪk ]

■ adjective Music involving only notes proper to the prevailing key without chromatic alteration.

Origin

C17: from Fr. diatonique , or via late L. from Gk diatonikos 'at intervals of a tone'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.