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ionization
ionization chamber
ionization potential
ionize
ionizing radiation
ionone
ionophore
ionosphere
ionospheric wave
iontophoresis
IOOF
iota
iotacism
IOU
IOW
Iowa
Iowa City
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ionospheric wave
i·on·o·spher·ic wave (plural i·on·o·spher·ic waves)


noun 
Definition:
 
radio 
Same as  sky wave
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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