corrode
part of speech
verb (corrode, corrodes, corroded, corroding)
meaning for a pupil
1) When metal corrodes, or something corrodes it, it is slowly damaged and eaten away by chemical action, such as rust from water and air or damage from acid: «Salt water corrodes the car». tree →
2) To slowly weaken or destroy something good, such as trust or friendship: «Lies corrode trust». tree →
sense in the lessons
In science lessons on materials and chemical change, pupils test which conditions make iron nails rust (corrode) — water and air together — and how paint, oil or galvanising (zinc coating) protect them. In everyday life, salty roads in winter and sea air corrode cars and bikes. Phrases: «corrode away», «corroded pipes», «corroded battery».
examples
- Iron corrodes when it gets wet and is exposed to air. tree →
- The sea air had corroded the old bike. tree →
- Acid can corrode metal. tree →
- Old batteries can leak and corrode, so do not touch the white crust. tree →
- Paint stops the gate from corroding. tree →
- Telling lies can corrode a friendship. tree →
- Gold does not corrode, which is why old gold coins still shine. tree →
note
The noun is «corrosion» and the adjective «corrosive» (a corrosive liquid can burn skin — the safety sign shows a hand being damaged). «Rust» is the name for corrosion of iron and steel; other metals corrode in other ways (copper turns green). Spelled with double r.
In the corpora
Trees and pragmatics
Every meaning and example of «corrode» parsed by Mova, each sentence with its dependency tree and frames.