# corroded

/kɝˈoʊdɪd/ (US) · /kəɹˈəʊdɪd/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/corroded
Updated: 2026-10-16

## Definition

damaged slowly by rust, water, air, or chemicals, so the surface becomes weak or full of holes. You use it mostly for old metal that looks eaten away.

For teachers: damaged by slow chemical action, especially oxidation from water, air, or acid, producing surface pitting, rust, or structural weakening.

## Examples

- The old bike has a corroded chain.
- The plumber replaced the corroded pipe under the sink before it started to leak.
- The corroded railings along the seafront, thinned by decades of salt spray, revealed how steadily the marine climate dismantles unprotected ironwork.

## Synonyms

rusted

## Usage notes

- Participial adjective from 'corrode'; typically placed before the noun or after 'be'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.