χρωματικός

ή, όν
A. of, relating to colour:—but only found,
II. metaph., in Rhet., offering a colourable pretext (χρῶμα IV.4), τὸ χ., as name of a form of rebuttal, Aps.p.273H. (v.l. χρωμάτιον).
2. in Music, chromatic (cf. χρῶμα IV. 3), μελῳδία D.H. Comp. 19; μέλος, opp. διάτονον, ἐναρμόνιον, Alciphr. 1.18, cf. Aristox(?).Oxy. 667.1; τὸ ‐κὸν [γένος] the chromatic genus, Plu. 2.744c, cf. Phld. Mus. p.63K., Ph. 1.321.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project