Laser Definition

lāzər
lasered, lasering, lasers
noun
lasers
A device containing a substance the majority of whose atoms or molecules can be put into an excited energy state, allowing the substance to emit coherent light of a precise wavelength in an intense, narrow beam.
Webster's New World
A beam of radiation emitted by a laser.
American Heritage
A ball or puck sent in a straight line at high speed.
Shot a laser into the upper right corner of the goal.
American Heritage
Synonyms:
optical maser
abbreviation
Abbreviation of light amplification by stimulated emission of radiation.
Wiktionary
pronoun

A taxonomic genus within the family Apiaceae "” possibly not valid.

Wiktionary
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Other Word Forms of Laser

Noun

Singular:
laser
Plural:
lasers

Origin of Laser

  • l(ight) a(mplification by) s(timulated) e(mission of) r(adiation)

    From American Heritage Dictionary of the English Language, 5th Edition

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