IR


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Ir

The symbol for iridium.

IR

abbr.
1. information retrieval
2. infrared
3. Sports injured reserve
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ir

the internet domain name for
(Computer Science) Iran

Ir

the chemical symbol for
(Elements & Compounds) iridium

IR

abbreviation for
1. (General Physics) infrared
2. (Government, Politics & Diplomacy) (formerly, in Britain) Inland Revenue
3. (Government, Politics & Diplomacy) Iran (international car registration)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

IR

infrared.

Ir

Irish.

Ir


Chem. Symbol.
iridium.

ir-1

,
var. of in- 2 (by assimilation) before r: irradiate.

ir-2

,
var. of in- 3 (by assimilation) before r: irreducible.

Ir.

Ireland.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Ir

The symbol for iridium.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.IR - a heavy brittle metallic element of the platinum groupIr - a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
atomic number 77, iridium
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.
2.IR - a board of the British government that administers and collects major direct taxes
Inland Revenue
administrative body, administrative unit - a unit with administrative responsibilities
Britain, 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; `Great Britain' is often used loosely to refer to the United Kingdom
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.