διορ-ισμός · dior-ismos — LSJ
division, distinction, Pl. Ti. 38c, Arist. EN 1134b33, Porph. Abst. 3.20.
logical distinction, Pl. Plt. 282c; definition, Arist. SE 168a23, al.
Math., particular enunciation of a problem, Procl. in Euc. p.203 F.
statement of limits of possibility of a problem, Apollon.Perg. Con.Praef., Archim. Sph.Cyl. 2.4, Phld. Acad.Ind. p.17 M.