Laser in a Sentence 

Definition of Laser  

a device that produces a narrow beam of concentrated light

Examples of Laser in a sentence

The surgeon explained that LASIK surgery involves a specialized laser that is able to repair the eye using light.  
Using the laser as a tool, the welder was able to position the concentrated light so that it melted the metal.  
The children played laser tag and tried to be the first one to touch the other with the red beam of light.  

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