n. (Min.) A hard stone, as the cat's-eye, which presents on a polished surface, and in the interior, an undulating or wary light. [ 1913 Webster ]
a. [ F., p. pr. of chatoyer to be chatoyant, fr. chat cat. ] (Min.) Having a changeable, varying luster, or color, like that of a changeable silk, or oa a cat's eye in the dark. [ 1913 Webster ]
n. [ F. chatoiement. See Chatoyant. ] Changeableness of color, as in a mineral; play of colors. Cleaceland. [ 1913 Webster ]