Word of the Day.

chatoyant (shuh-TOI-uhnt) adjective

Having a changeable luster like that of a cat's eye at night.

noun

A chatoyant gemstone, such as a cat's eye.

[From French, present participle of chatoyer (to shine like a cat's eye),
from chat (cat).]

- Anu Garg (garg wordsmith.org)