dĭătŏnĭcus, a, um, adj., = διατονικός,
I diatonic , in music: modulatio, Mart. Cap. 9, § 959; § 963.—
II Neutr. as subst.: diatonicon , i, a kind of masonry filled in with rubble , Plin. 36, 22, 51, § 172.