mi·cro·wave (mīkrə-wāv′, -krō-)
Relating to or being electromagnetic radiation between radio waves and infrared waves in the electromagnetic spectrum, having frequencies between 300 megahertz and 300 gigahertz and wavelengths between 1 meter and 1 millimeter.
1. A wave of microwave radiation.
2. A microwave oven.
tr.v. mi·cro·waved, mi·cro·wav·ing, mi·cro·waves
To cook or heat (food) in a microwave oven.
mi′cro·wava·ble, mi′cro·wavea·ble adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.