microwave
UK: ˈmaɪkrə(ʊ)weɪv | US: ˈmaɪkroʊweɪv
n. 1. An electromagnetic wave with a wavelength between one millimeter and one meter, used in radar, communications, and heating (e.g., microwave oven).
vt. 2. To cook or heat food using microwave radiation.
micro<small> + wave<undulation>
- micro: From Greek mikros (small), used in English to denote minute scale (e.g., microscope).
- wave: From Old English wafian (to fluctuate), referring to oscillating motion, later generalized to electromagnetic oscillations.
Etymology Origin:
Coined in the 1930s to describe shorter radio waves (compared to traditional longwave broadcasts). The term combines micro- (emphasizing tiny wavelengths) and wave (highlighting their oscillatory nature). Later, the verb form emerged (1940s) with the invention of microwave ovens, linking the technology to its heating function.
The microwave oven quickly reheated my lunch.
Scientists use microwaves for satellite communications.
Avoid metal containers in the microwave to prevent sparks.
This recipe requires three minutes in the microwave.
Microwave radiation is harmless at low intensities.