Definition of maser in English:

maser

Syllabification: ma·ser
Pronunciation: /ˈmāzər
 
/

noun

A device using the stimulated emission of radiation by excited atoms to amplify or generate coherent monochromatic electromagnetic radiation in the microwave range.
More example sentences
  • There are of course lasers with wavelengths in the infrared, masers that emit coherent microwaves, and even x-ray lasers.
  • Instead of emitting light, like a laser, the maser emits microwave energy at a specific frequency, which produces a very specific ticking.
  • Instead of emitting visible light, a maser generates a beam of pure microwave energy - electromagnetic waves intermediate in length between infrared and radar.

Origin

1950s: acronym from microwave amplification by the stimulated emission of radiation.

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