maser


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ma·ser

 (mā′zər)
n.
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).]

maser

(ˈmeɪzə)
n
(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)]

ma•ser

(ˈmeɪ zər)

n.
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)]

ma·ser

(mā′zər)
Any of several devices that amplify or generate microwaves. Masers are similar to lasers but emit microwaves instead of light.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
Translations
References in periodicals archive ?
This "split antenna" method allowed one receiver stabilized by the hydrogen maser to be compared with the other receiver stabilized using the stable frequency reference that was sent on a 310- kilometer round trip through the fiber.
Megamasers, as the name suggests, have a much higher luminosity, and can be over 100 million times brighter than the masers found in galaxies like the Milky Way.
Tender issue for Enhanced Passive Hydrogen Maser (PHM) Framework: This framework will implement activities covering the development of the enhanced on-board Passive Hydrogen Maser (PHM) Clock intended for consideration under Galileo 2nd Generation considering obsolescence technology enhancement miniaturisation and improved reliability and including relevant testing.
When these results are combined with earlier studies of the Great Horned Owl diet in Oregon (n = 875 prey items; Maser and Brodie 1966; Maser and others 1970), the number of mammalian prey = 25 and avian prey = 12.
Masers & Lasers: An Historical Approach, 2nd Edition
Caption: Charles Townes with an early maser in 1955, [c] AP
In 1954, that theory was realized when Townes and his students developed the maser (microwave amplification by stimulated emission of radiation).
25, 1955, file photo, Charles Hard Townes, Columbia University professor and Nobel laureate, explains his invention the maser during a news conference in New York City.
To construct the maser, they placed the two double dots about 6 millimeters apart in a cavity made of a superconducting material, niobium, which requires a temperature near absolute zero, around minus 459 degrees Fahrenheit.
Maser, colonoscopy is the gold standard in screening.
Getting a maser to work has required a lot of equipment: either extremely low pressures supplied by special vacuum chambers and pumps, or freezing conditions at temperatures close to absolute zero (-273.
Title: Water Masers Spaito-kinemattcs & Astrometry of Massive Star-forming Regions (Water Maser Research in Japan)