Definition of "IR"

IR

noun
countable and uncountable, plural IRs
1. (business) Initialism of industrial relations.
2. (business) Initialism of investor relations.
3. (computer science) Initialism of information retrieval.
4. (software compilation) Initialism of intermediate representation.
  Quotations
  At the end of the chapter, you will have implemented your first compiler producing LLVM IR.
  2021, Kai Nacke, Learn LLVM 12: A beginner's guide to learning LLVM compiler tools and core libraries with C++, Packt Publishing Ltd, page viii
5. (physics) Abbreviation of infrared.
6. (physics) Initialism of infrared radiation.
7. (aviation) Initialism of inertial reference.
8. (disability sports) Initialism of indoor rowing.
9. (politics) Initialism of international relations.
10. (pharmacology) Initialism of immediate release.
11. (Ohio, rare) Initialism of interstate route.
adjective
not comparable
1. (pornography) Initialism of interracial.