noun
- A heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium.
- synonyms: iridium, atomic number 77
- A board of the British government that administers and collects major direct taxes.
- synonyms: Inland Revenue
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ir. Retrieved September 20, 2026, from http://smartdefine.org/ir/definitions/1287578 |
| Chicago | WordNet. 2010. "ir" http://smartdefine.org/ir/definitions/1287578 (accessed September 20, 2026). |
| Harvard | WordNet 2010, ir, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ir/definitions/1287578>. |
| MLA | WordNet. "ir" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/ir/definitions/1287578> |