laser

The Simple English Wikipedia has an article on:

Laser

Pronunciation

• (UK) IPA ^(key): /ˈleɪz.ə(r)/
• (US) IPA ^(key): /ˈleɪzɚ/

• Audio (UK)

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Noun

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".

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Related words

• lase