mi·cro·wave 
(mīkrə-wāv′, -krō-)
(mīkrə-wāv′, -krō-)adj.
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.
n.
1. A wave of microwave radiation.
2. Informal 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.