noun ·see fleur-de-lis, 2.
2. iris ·noun the rainbow.
3. iris ·add. ·noun inner circle of an oscillated color spot.
4. iris ·noun an appearance resembling the rainbow; a prismatic play of colors.
5. iris ·noun the goddess of the rainbow, and swift-footed messenger of the gods.
6. iris ·noun the contractile membrane perforated by the pupil, and forming the colored portion of the eye. ·see eye.
7. iris ·noun a genus of plants having showy flowers and bulbous or tuberous roots, of which the flower-de-luce (fleur-de-lis), orris, and other species of flag are examples. ·see ·illust. of flower-de-luce.