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extremely high frequency

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extremely high frequency

–noun Radio.
any frequency between 30 and 300 gigahertz. Abbreviation: EHF, ehf

Origin:
1950–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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extremely high frequency  
n.   Abbr. EHF
A radio-frequency band with a range of 30,000 to 300,000 megahertz.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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