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Irish wolfhound
Irishism
Irishman
Irishwoman
iritis
irk
irksome
Irkutsk
IRO
iroko
iron
Iron Age
iron age
iron blue
Iron Cross
Iron Curtain
iron curtain
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iron oxide
i·ron ox·ide


noun 
Definition:
 
compound of iron and oxygen: any natural or synthetic compound of iron and oxygen
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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