rouille
- noun
- /ruːˈiː/
- Canadian
- If you leave your tools outside, rouille will quickly appear on the metal parts.
Examples
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The mechanic explained that rouille weakens the structure of iron over time.
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The old bike was covered in rouille.
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The old anchor was covered in thick rouille after years at the bottom of the sea.
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Rust, or rouille, can weaken metal structures.
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After being left outside in the rain, the old bicycle was covered in rouille.
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The metal gate developed rouille over the winter, prompting the owner to repaint it.
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To prevent rouille from forming on their tools, the workers regularly applied a protective oil.
Synonyms
42
1.5
A reddish-brown flaky coating that forms on iron or steel when it touches air and water
Antonyms
How Rusty
Surface Forms
Etymology
Rouille comes from French and simply means 'rust', the reddish-brown coat that forms on iron or steel. That's why rouille is used for the flaky, weakening layer you see when metal gets wet or old.