What does IR mean in Unclassified?
This page is about the meanings of the acronym/abbreviation/shorthand IR in the Miscellaneous field in general and in the Unclassified terminology in particular.
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What does IR mean?
- iridium, Ir, atomic number 77(noun)
- a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium