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# discoloration

«discoloration» in Mova's school dictionary: **A change in the usual colour of something, often to a…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (discoloration, uncountable; a discoloration, discolorations)

### meaning for a pupil

1) A change in the usual colour of something, often to a worse colour. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#m1)

2) A spot or patch where the colour has changed, like a stain or a bruise. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#m2)

### sense in the lessons

In science and everyday life, discoloration shows rust, mould, sun damage, a stain on teeth or a bruise on skin; it is often a sign of a problem; phrases: «discoloration of the teeth», «a yellow discoloration».

### examples

- The dentist noticed some discoloration on my tooth. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x1)
- Sunlight caused discoloration of the curtains. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x2)
- There was a brown discoloration on the ceiling from the leak. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x3)
- Rust leaves a red discoloration on metal. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x4)
- The bruise left a purple discoloration on his knee. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x5)
- Discoloration of leaves can mean a plant is ill. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x6)
- We cleaned the discoloration from the bath. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/discoloration/#x7)

### note

This is the US spelling (also used often in the UK); the UK spelling is «discolouration». Verb: discolour (UK) / discolor (US).

### Trees and pragmatics

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