Englishfor English speakers
laser
Noun
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A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
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The term laser originated as an acronym for "light amplification by stimulated emission of radiation".
computer
Noun
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A computer is a machine that helps you store, organize, and use information.
If you're looking at a web page, you must be using a computer.