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# laser

«laser» in Mova's school dictionary: **A machine that makes a very narrow, strong beam of light…** — its meaning for a pupil, its sense in the lessons and examples, with 3 sentences of Mova's corpora that use it.

### part of speech

noun (a laser, lasers)

### meaning for a pupil

1) A machine that makes a very narrow, strong beam of light of one colour. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#m1)

2) The beam itself. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#m2)

### sense in the lessons

In science, lasers are used in barcode scanners, eye surgery, measuring distances, cutting metal and in light shows. In safety, never shine a laser pointer at someone's eyes, at animals, cars or planes — it can blind people. Phrases: «laser pointer», «laser beam», «laser printer», «laser tag».

### examples

- The shop scanner uses a laser to read barcodes. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#x1)
- The teacher pointed at the screen with a laser pointer. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#x2)
- Never shine a laser in anyone's eyes. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#x3)
- Doctors can fix eyes with lasers. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#x4)
- We played laser tag at the party. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#x5)
- A laser beam is very straight and narrow. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/#x6)

### note

Countable: lasers. It was made from the first letters of a long phrase, so it is an «acronym». Shining lasers at aircraft is dangerous and against the law.

### In the corpora

- [Lasers can damage sight, so a laser pointer is never pointed at anyone's eyes.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/78-eyes-nose-and-the-toilet/5/)
- [Scientists still bounce lasers off mirrors left on the Moon by the Apollo astronauts between 1969 and 1972.](https://md.mova.elamur.ai/free/en/corpora/school/myths/37-olympiad-how-could-you-check-it/14/)
- [Astronauts walked on the Moon between 1969 and 1972 and left mirrors there that scientists still bounce lasers off.](https://md.mova.elamur.ai/free/en/corpora/school/world/175-its-on-tiktok-so-its-true-and-the-comment-section/21/)

### Trees and pragmatics

[Every meaning and example of «laser» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/laser/), each sentence with its dependency tree and frames.