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# abrasion

noun (an abrasion, abrasions; also uncountable)

«abrasion» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A scrape on the skin where the top layer has been rubbed off, like a grazed knee. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#m1)
2. (science) The wearing away of a surface by rubbing, like rocks worn smooth by sand, water or wind. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#m2)

### In the lessons

In first aid: an abrasion is a graze; clean it with water and cover it. In science (geography, rocks): abrasion is one way rivers, waves, glaciers and wind erode land. Phrases: minor abrasions, cuts and abrasions, abrasion by sand.

### Examples

- She fell off her bike and got an abrasion on her elbow. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#x1)
- Clean an abrasion with clean water before putting on a plaster. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#x2)
- The rocks on the beach were smoothed by abrasion. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#x3)
- The river carries stones that wear away its bed by abrasion. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#x4)
- He had only cuts and abrasions after the fall. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#x5)
- Wind blowing sand causes abrasion in deserts. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/#x6)

### Note

Countable when it means a scrape (two abrasions), uncountable for the process. Everyday words: graze, scrape (UK and Australia say "graze" a lot). Adjective abrasive means rough and rubbing (also rude and harsh in manner).

## On Mova

- [Trees and pragmatics of «abrasion» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/abrasion/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«abrasion» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/abrasion.html) on Mova free.