laser

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la|ser /l'eɪzər/ (lasers)
1 [N-COUNT]
A laser is a narrow beam of concentrated light produced by a special machine. It is used for cutting very hard materials, and in many technical fields such as surgery and telecommunications.
...new laser technology...
2 [N-COUNT]
A laser is a machine that produces a laser beam.
...the first-ever laser, built in 1960.la|ser disc (laser discs)
also laser disk
[N-COUNT] oft N n, also on N
A laser disc is a shiny flat disc which can be played on a machine which uses lasers to convert signals on the disc into television pictures and sound of a very high quality.la|ser print|er (laser printers)
[N-COUNT]
A laser printer is a computer printer that produces clear words and pictures by using laser beams.

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