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laser

la·ser

laser

 
pronunciation:
leI zr
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part of speech: noun
definition: a device that amplifies electrical impulses at mixed frequencies in or near the range of visible light by stimulating the atoms in a medium such as a gas or crystal, producing an intense, concentrated beam of light at one or more virtually distinct frequencies (acronym for "light amplified by stimulated emission of radiation").
 
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  geology, light, physics