laser

From Wiktionary
Wikipedia logo
Wikipedia logo
The Simple English Wikipedia has an article on:

Pronunciation[change]

Noun[change]

Singular
laser

Plural
lasers

  1. (countable) A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
  2. The term laser originated as an acronym for "light amplification by stimulated emission of radiation".