| 1. | earth of a yellowish-red color, found esp. in the Persian Gulf, that serves as a pigment and as a polish for gold and silver objects. |
| 2. | a pigment of that color prepared by oxidizing the salts of iron. |
| Indian red n. An iron oxide used as a paint and cosmetic pigment. [From the fact that earths containing the pigment are found in the East Indies.] |