Maser

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  maser \ma"ser\, n.
     1. Same as {Mazer}.
        [1913 Webster]
  
     2. (Physics) [from Microwave Amplification by Stimulated
        Emission of Radiation.] An electronic device producing


        coherent monochromatic microwave radiation; it produces
        less noise than other forms of microwave oscillator.
        [acronym]
        [PJC] MASH

From WordNet (r) 2.0 [wn]:

  maser
       n : 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