A.parting, separation (opp. ἕνωσις, Dam.Pr.273), “ὀρέων” Hdt.7.129; “ὀστέων” Hp.Art.20, cf. Gal.19.461; “φάραγγες καὶ δ. τῆς γῆς” fissures, Arist.Mete.350b36; breach in a barrier, Ph.Bel.98.31; opening, “τῆς γένυος” Aret.CD1.3.
e. = διαστολή, of the pulse, Zenoap.Gal.8.736.
f. expansion of air, opp. πίλησις, Ph.Bel.77.23.
2. setting at variance, “τοῖς νέοις ἐς τοὺς πρεσβυτέρους” Th.6.18, cf. Plu.Cor.16; cause of breach, Arist.Pol.1303b15.
b. contrasting, Pl.R.360e.
3. difference, contrast, Arist.Cael.312a13.
5. divorce, Plu.Aem.5, etc.
III. interval, Pl.Ti.36a, etc.; in Music, Aristox.Harm.p.4 M., al.; of space, extension, Arist.Top.142b5, al.; dimension, “τὰς αὐτὰς διαστάσεις εἰς βάθος εἰληφός” Epicur.Nat.2.7, cf. Gal.11.503, S.E.M.3.19; “ἡ δ. ἡ τριχῇ” tridimensionality, Plot.1.2.6, cf. 6.6.17, Porph.Sent.35, Dam.Pr.375.
IV. = διακόσμησις, Antipho Soph.23. (Freq. confused with διάτασις, wh. shd. perh. be read in 1.1.b,c,d.)