follow Dictionary.com

Your favorite word could be our Word of the Day!

ir-1

1.
variant of in-2. (by assimilation) before r: irradiate.

ir-2

1.
variant of in-3. (by assimilation) before r: irreducible.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for ir-

in-1

prefix
1.
not; non-: incredible, insincere, illegal, imperfect, irregular Compare un-1
Word Origin
from Latin in-; related to ne-, nōn not

in-2

prefix
1.
in; into; towards; within; on: infiltrate, immigrate
2.
having an intensive or causative function: inflame, imperil
Word Origin
from in (prep, adv)

ir-

prefix
1.
a variant of in-1 , in-2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for ir-

assimilated form of Latin prefixes in- (see in-) before -r-.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
ir- in Medicine

ir- 1
pref.
Variant of in-1.

ir- 2
pref.
Variant of in-2.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for ir-

Few English speakers likely know this word

Word Value for ir

0
0
Scrabble Words With Friends

Quotes with ir-

Nearby words for ir-