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# suction

«suction» in Mova's school dictionary: **The pulling force made when air or liquid is removed from…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (suction — uncountable)

### meaning for a pupil

The pulling force made when air or liquid is removed from a space, so things are pulled in or held on: "A vacuum cleaner works by suction." [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#m1)

### sense in the lessons

In science lessons, suction is explained by air pressure: when air is taken out, the air outside pushes in. Examples are drinking through a straw, suction cups, and vacuum cleaners. In nature, octopus arms have suckers that grip by suction. Phrases: suction cup, suction pad, by suction.

### examples

- A vacuum cleaner picks up dust by suction. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#x1)
- The suction cup holds the hook on the window. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#x2)
- An octopus grips rocks with suction. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#x3)
- You use suction when you drink through a straw. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#x4)
- The dentist used a suction tube to remove the water. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#x5)
- A plunger unblocks a sink by suction. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/suction/#x6)

### note

Uncountable. Science note: suction is not really "pulling"; when air is removed, the higher air pressure outside pushes things in or holds them on. Safety: the drain in a pool can have strong suction; keep hair away from it.

### In the corpora

- [Keep hair, fingers and toys away from pool drains and outlets, because strong suction can hold you under.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/233-sea-and-pools/16/)

### Trees and pragmatics

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