List of Acronyms and Initialisms: I - IU


  • iu – (s) (s) Inuktitut language (ISO 639-1 code)
  • IUCN – (i) International Union for the Conservation of Nature and Natural Resources (World Conservation Union)
  • IUPAC – (a) International Union of Pure and Applied Chemistry (pronounced "eye-yoo-pac")
  • IUSS – (i) Integrated Undersea Surveillance System – Integrated Unit Simulation System – International Union of Soil Sciences

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