Laser

/ˈleɪ.zər/

Meaning & Definition

noun
A device that generates an intense beam of coherent monochromatic light through a process of optical amplification based on the stimulated emission of radiation.
The surgeon used a laser to perform the delicate procedure on the patient's eye.
A device that emits a focused beam of light for various applications, including cutting, measuring, and targeting.
The construction workers utilized a laser to ensure that the walls were perfectly straight.
An acronym for 'Light Amplification by Stimulated Emission of Radiation'.
Researchers are exploring new methods of using laser technology for telecommunications.

Etymology

Acronym for Light Amplification by Stimulated Emission of Radiation.

Common Phrases and Expressions

laser focus
Concentration on a particular task or goal.
laser beam
A narrow and intense beam of light produced by a laser.
laser surgery
Surgical procedures that utilize lasers for precision.

Related Words

optics
The branch of physics that involves the behavior and properties of light.
photons
Particles of light that carry electromagnetic radiation.
radiation
Energy that travels through space and can take the form of electromagnetic waves.

Slang Meanings

Used to describe something that is very fast or precise.
That new sports car is laser fast!
Referring to a sharp, cutting remark or action.
Her comeback in the debate was laser sharp.