What does diatonicus mean in Latin?

diatonicus, a adjective, means “diatonic, modulated”.

How do you pronounce diatonicus?

In classical Latin, [di.aˈtɔ.nɪ.kʊs]; in ecclesiastical (church) Latin, [di.aˈtɔː.ni.kus].

adjectivefirst/second-declension adjective

diatonicus (feminine diatonica, neuter diatonicum)

Classical[di.aˈtɔ.nɪ.kʊs]Ecclesiastical[di.aˈtɔː.ni.kus]

singular
form	masculine	feminine	neuter
nominative	diatonicus	diatonica	diatonicum
genitive	diatonicī	diatonicae	diatonicī
dative	diatonicō	diatonicae	diatonicō
accusative	diatonicum	diatonicam	diatonicum
ablative	diatonicō	diatonicā	diatonicō
vocative	diatonice	diatonica	diatonicum

plural
form	masculine	feminine	neuter
nominative	diatonicī	diatonicae	diatonica
genitive	diatonicōrum	diatonicārum	diatonicōrum
dative	diatonicīs	diatonicīs	diatonicīs
accusative	diatonicōs	diatonicās	diatonica
ablative	diatonicīs	diatonicīs	diatonicīs
vocative	diatonicī	diatonicae	diatonica

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.