microwave

[mahy-kroh-weyv]
noun
1.
an electromagnetic wave of extremely high frequency, 1 GH 3 or more, and having wavelengths of from 1 mm to 30 cm.
verb (used without object), microwaved, microwaving.
3.
to use a microwave oven.
verb (used with object), microwaved, microwaving.
4.
to cook, defrost, or otherwise prepare in a microwave oven.

Origin:
1930–35; micro- + wave

microwaveable, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
microwave (ˈmaɪkrəʊˌweɪv)
 
n
1.  a.  electromagnetic radiation in the wavelength range 0.3 to 0.001 metres: used in radar, cooking, etc
 b.  (as modifier): microwave generator
2.  short for microwave oven
 
vb
3.  to cook in a microwave oven

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

microwave
"type of electromagnetic wave," 1931, coined in Eng. from micro- + wave. First record of microwave oven is from 1965; microwave as short for this is attested from 1974; as a verb, from 1976.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

microwave mi·cro·wave (mī'krə-wāv', -krō-)
n.
A high-frequency electromagnetic wave, one millimeter to one meter in wavelength, intermediate between infrared and shortwave radio wavelengths. v. mi·cro·waved, mi·cro·wav·ing, mi·cro·waves
To cook or heat using microwaves.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
microwave   (mī'krō-wāv')  Pronunciation Key 
An electromagnetic wave with a frequency in the range of 100 megahertz to 30 gigahertz (lower than infrared but higher than other radio waves). Microwaves are used in radar, radio transmission, cooking, and other applications. Microwaves are generated naturally by many astronomical phenomena and are found in cosmic background radiation. See more at electromagnetic spectrum.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
In this episode learn how to cook and reheat food safely in a microwave oven.
It was not a true invisibility cloak, though, since it only worked in two
  dimensions and only at microwave frequencies.
If your coconut oil is in solid form, run the jar under hot water first or
  place the bowl in the microwave for a few seconds.
Heated via microwave or in its earlier years by those heat-em-up non-microwave
  ovens.
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