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maser

American  
[may-zer] / ˈmeɪ zər /

noun

  1. a device for amplifying electromagnetic waves by stimulated emission of radiation.


maser British  
/ ˈmeɪzə /

noun

  1. a device for amplifying microwaves, working on the same principle as a laser

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

maser Scientific  
/ mā′zər /
  1. Short for microwave amplification by stimulated emission of radiation. A device that generates coherent microwaves using the same principles as a laser. Masers are used in a variety of applications, including in atomic clocks. Natural masers are found in outer space when water or other substances are excited by radiation from a star or by the energy of a collision.


Etymology

Origin of maser

1950–55; m(icrowave) a(mplification by) s(timulated) e(mission of ) r(adiation)


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

This releases a burst of energy that heats up the disk as it moves outwards - and produces maser emissions on the way.

From Space Scoop ● Mar. 29, 2023

In the late 1950s, Gould explored using light to optically ‘pump’ a maser — a device emitting microwaves at a specific frequency, invented by physicist Charles Townes in 1953.

From Nature ● Jan. 8, 2019

Following his NMR work, Dr. Bloembergen devoted his attention to the amplification of microwave energy and the device for producing this effect, the maser.

From Washington Post ● Sep. 9, 2017

Instruments on the ground were used to compare the frequency of the signal emitted by the rocket-borne maser with that from a similar maser on Earth.

From Textbooks ● Oct. 13, 2016

Scientific and technical instruments—oscilloscopes, X-ray generators, radar equipment, maser sets, dynostatic crystals, thermolight resonators, and so on—were stolen complete or gutted for various parts.

From Anything You Can Do! by Randall Garrett

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