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Audio English.org » Dictionary » I » Ionosphere ... Iridaceae

IR

 Dictionary entry overview: What does IR mean? 

IR (noun)
  The noun IR has 2 senses:

1. a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
2. a board of the British government that administers and collects major direct taxes

  Familiarity information: IR used as a noun is rare.


 Dictionary entry details 


IR (noun)


Sense 1Ir [BACK TO TOP]

Meaning:

A heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium

Classified under:

Nouns denoting substances

Synonyms:

atomic number 77; Ir; iridium

Hypernyms ("Ir" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)


Sense 2IR [BACK TO TOP]

Meaning:

A board of the British government that administers and collects major direct taxes

Classified under:

Nouns denoting groupings of people or objects

Synonyms:

Inland Revenue; IR

Hypernyms ("IR" is a kind of...):

administrative body; administrative unit (a unit with administrative responsibilities)

Domain region:

Britain; GB; Great Britain; U.K.; UK; United Kingdom; United Kingdom of Great Britain and Northern Ireland (a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland)


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