di·a·ton·ic 
(dī′ə-tŏnĭk)
(dī′ə-tŏnĭk)adj.
Music
Music
Of or using only the seven tones of a standard scale without chromatic alterations.
[Late Latin diatonicus, from Greek diatonikos : dia-, dia- + tonos, tone; see TONE.]
di′a·toni·cal·ly adv.
di′a·toni·cism (-ĭ-sĭz′əm) n.
- monolithic
- monolithically
- monolog
- monologic
- monological
- monologist
- monologue
- monologuist
- monomania
- monomaniac
- monomaniacal
- monomaniacally
- monomer
- monomeric
- monometallic
- monometallism
- monometallist
- monometer
- monomial
- monomolecular
- monomolecularly
- monomorphic
- monomorphism
- monomorphous
- Monongahela River