| IR | having a play of lustrous rainbow-like colors |
|---|---|
| IR | varying in color when seen in different lights or from different angles |
| IR | of or relating to the iris of the eye |
| IR | of or containing iridium |
| IR | a heavy brittle metallic element of the platinum group |
| IR | inflammation of the iris and ciliary body of the eye |
| IR | inflammation of the iris and cornea of the eye |
| IR | swelling of the iris of the eye |
| IR | a genus of Hirundinidae |
| IR | bluish-green-and-white North American swallow |
| IR | a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum) |
| IR | a surgical procedure that makes an incision in the iris of the eye in order to enlarge the pupil or to treat glaucoma |