δίεσις · diesis — LSJ
sending through, discharge, putting through, letting through
sending through, discharge, of a liquid, f. l. for δέξις, Hp. Superf. 29; putting through, τῆς πλεκτάνης διὰ τοῦ αὐλοῦ Arist. GA 720b33; letting through, opp. σύλληψις, Plu. Art. 3.
2 release, discharge
release, discharge, Sammelb. 4638.21 (ii B. C.).
3 dismissal, divorce
dismissal of a wife, divorce, PMasp. 153.17 (vi A. D.), etc.
II moistening, wetting
moistening, wetting, Hp. Ulc. 14, Dsc. 1.26.
III smallest interval, semi-tone, quarter-tone
in Music, the smallest interval in the scale, [ἡ ἀρχὴ] ἐν μέλει δ. Arist. APo. 84b39, cf. Metaph. 1053a12, D.H. Comp. 11, etc.; semi-tone in the diatonic scale, Philol. 6, Arist. Pr. 917b36; in enharmonic, quarter-tone, Aristox. Harm. p.21 M., etc., cf. Theo Sm. p.55 H.