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irrigate
irritable
irritable bowel syndrome
irritant
irritate
irritation
irrupt
irruption
irruptive
IRS
Irtysh
Irvine
Irvington
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is (1)
is (2)
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irruptive
ir·rup·tive [ i rúptiv ]


adjective 
Definition:
 
1. breaking in: entering or likely to enter suddenly or violently
2. injected into rock: describes igneous rock that is injected forcibly into preexisting rock formations

ir·rup·tive·ly adverb
Encarta® World English Dictionary [North American Edition] © & (P)2007 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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