laser
noun /ˈleɪzə(r)/
/ˈleɪzər/
- a device that gives out light in which all the waves oscillate (= change direction and strength) together, typically producing a powerful beam of light that can be used for cutting metal, in medical operations, etc.
- a laser beam
- a laser navigation device
- The barcodes on the products are read by lasers.
- a laser show (= lasers used as entertainment)
- She's had laser surgery on her eye.
- laser treatment/therapy
Oxford Collocations Dictionaryadjective- powerful
- infrared
- use
- aim
- fire
- …
- beam
- blast
- light
- …
Word Origin1960s: acronym from light amplification by stimulated emission of radiation, on the pattern of maser.