ὁμό-χροια · homo-chroia — LSJ
sameness of colour, X. Cyn. 5.18, Arist. Mete. 342b20, Gp. 18.1.1.
even surface of the body, skin, Hdt. 1.74 (acc. ὁμοχροίην or -χροιίην); so ὁμοχροίη, of inner and outer surfaces of skull, Hp. VC 1 ; of surface of eye, Id. Carn. 17 : metaph., οὐδὲ ἅπτεται ταῦτα τῆς ὁμοχροίας Pl. Ax. 369d.