IR

Ir

The symbol for iridium.

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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

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Ir

the chemical symbol for

(Elements & Compounds) iridium

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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.

Thesaurus

Noun	1.	Ir - 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.

Translations

abbrev. di infrared