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1. A device that generates or amplifies electromagnetic radiation, especially microwaves, of a coherent wavelength by stimulated emission.
2. A natural object or region of space that acts like a maser, as a star-forming region of intersellar space.
[m(icrowave) a(mplification by) s(timulated) e(mission of) r(adiation).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Electronics) a device for amplifying microwaves, working on the same principle as a laser
[C20: m(icrowave) a(mplification by) s(timulated) e(mission of) r(adiation)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a device for producing or amplifying electromagnetic waves by exciting atoms and causing them to radiate their energy in phase. Compare laser.
[1955; m(icrowave) a(mplification by) s(timulated) e(mission of) r(adiation)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Any of several devices that amplify or generate microwaves. Masers are similar to lasers but emit microwaves instead of light.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||maser - an acronym for microwave amplification by stimulated emission of radiation; an amplifier that works on the same principle as a laser and emits coherent microwave radiation|
amplifier - electronic equipment that increases strength of signals passing through it
gas maser - a maser in which microwave radiation interacts with gas molecules
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.