microwave

An electromagnetic wave with wavelength between that of infrared light and radio waves.

Many radar systems use a combination of radio waves and microwaves.

Microwaves do not follow the curvature of the earth, but travel in a straight line. They must therefore have unobstructed "line of sight" and the dish aerials have to be sited on towers or high buildings, on high ground, or a combination of all three.

Ellipsis of microwave oven.

Just put it in the microwave for 30 seconds and it's ready to eat.

To cook (something) in a microwave oven.

A vengeful mother-of-three has been jailed for 168 days after being convicted of killing a neighbour's kitten by microwaving the 10-week-old pet.

To provide minimal preparation for implementation, deeming full or extensive preparation as unnecessary.