Di`a*zeuc"tic (?), Di`a*zeu"tic (?), a. [Gr. disjunctive, fr. to disjoin; through, asunder + to join, yoke.] Anc. Mus.
Disjoining two fourths; as, the diazeutic tone, which, like that from F to G in modern music, lay between two fourths, and, being joined to either, made a fifth.
© Webster 1913.