[ach.ro.mat.ic] adj (1766) 1: refracting light without dispersing it into its constituent colors: giving images practically free from extraneous colors "an ~ telescope"
2: not readily colored by the usual staining agents
3: possessing no hue: being or involving black, gray, or white: neutral "~ visual sensations"
4: being without accidentals or modulation: diatonic -- ach.ro.mat.i.cal.ly adv -- achro.ma.tism n -- achro.ma.tize vt