Laser
/lˈeɪzər/
Listen pronunciation
Definition
(noun) A device that produces a monochromatic, coherent beam of light.
Sentence Examples
Laser rays are used in the restoration of ancient works.
And where are the aliens, the flying saucers, and the laser guns?
CEFR Practice Quiz
The new technology uses a powerful ____ to cut through various metal sheets with very high precision.