'IR' definitions:

Definition of 'Ir'

From: WordNet
noun
A heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium [syn: iridium, Ir, atomic number 77]
noun
A board of the British government that administers and collects major direct taxes [syn: Inland Revenue, IR]

Definition of 'Ir'

From: GCIDE
  • Ir \Ir\ n. (Chem.) The chemical symbol for iridium, a metallic element of the platinum group. It has atomic number 77 and an atomic weight of 192.22.
  • Syn: iridium. [WordNet 1.5]

Definition of 'IR'

From: Hitchcock
    Ir, watchman; city; vision

Acronyms for 'IR'

From: V.E.R.A.
  • Information Retrieval
  • Interface Repository (ORB)
  • Internet Registry

Words containing 'IR'