cha·toy·ant /ʃəˈtɔɪənt/
 (a.)光澤會變化的
 Cha·toy·ant a.  Min. Having a changeable, varying luster, or color, like that of a changeable silk, or oa a cat's eye in the dark.
 Cha·toy·ant, 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.
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 chatoyant
      adj : varying in color when seen in different lights or from
            different angles; "changeable taffeta"; "chatoyant (or
            shot) silk"; "a dragonfly hovered, vibrating and
            iridescent" [syn: changeable, iridescent, shot]