διάχῠσις · diachysis — LSJ
diffusion, extension, spreading, spread out
diffusion, Hp. Vict. 2.60, Pl. Cra. 419c; extension, Plu. Amat. 2.771b; spreading, γῆς Gp. 5.25.2; δ. λιμνώδη λαμβάνειν to spread out like a lake, Plu. Mar. 37.
2 waste, loss
waste, loss, σπέρματος Thphr. CP 4.4.7.
3 softening
softening, ib. 4.12.2.
II dissolution, liquefaction
dissolution, liquefaction, opp. πῆξις, Arist. Mete. 382a30.
III relaxation, cheerfulness, merriment, ridicule, cheerful expression
relaxation, συστολαὶ καὶ δ. Epicur. Fr. 410, cf. Chrysipp.Stoic. 3.119; τὰς ἐπὶ σαρκὶ τῆς ψυχῆς δ. Epicur. l.c., cf. Aret. SD 1.5; cheerfulness, ψυχῆς Sor. 1.97; merriment, Plu. Cat.Mi. 46, Hierocl. p.54A., Hdn. Fig. p.92 S.; ridicule, Phld. Lib. p.37O.; cheerful expression, Plu. Dem. 25.
IV ‘melting’
δ. ὀμμάτων ‘melting’ look, Id. Alex. fort. 2.335c.
V
= δελφίνιον, Ps.-Dsc. 3.73.