Ī'so-chro-măt'ic, a.

(-kro-măt'ik), a. [Fr. isochromatique, from Gr. ἴσος, equal, and χρῶμα, color, from χρωμαίνειν, χρώζειν, to tinge.] (Opt.) Having the same color;—a term applied to two rings, curves, or lines, having the same color or tint.