First Known Use: 1957
Dictionary
1laser
noun, la·ser often attributive \ˈlā-zər\
: a device that produces a narrow and powerful beam of light that has many special uses in medicine, industry, etc.
Full Definition of LASER
1
: a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating a beam of coherent electromagnetic radiation usually in the ultraviolet, visible, or infrared regions of the spectrum
2
: something resembling a laser beam in accuracy, speed, or intensity <threw a laser into the end zone> <a laser stare>
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Origin of LASER
light amplification by stimulated emission of radiation
2laser
verb
Definition of LASER
transitive verb
: to subject to the action of a laser
: treat with a laser
First Known Use of LASER
1978
LASER Defined for Kids
laser
noun la·ser \ˈlā-zər\
Definition of LASER for Kids
: a device that produces a very powerful beam of light
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