corrode
C1Formal, Technical, Academic
Definition
Meaning
To cause (a metal or other material) to be gradually destroyed by chemical action, typically oxidation.
To gradually weaken, damage, or destroy something (e.g., a relationship, confidence, trust) over time.
Linguistics
Semantic Notes
Primarily transitive, but can be used intransitively. Implies a slow, often inevitable process of destruction. Figurative use is common and powerful.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage.
Connotations
Negative; implies irreversible damage through a persistent, often unseen, force.
Frequency
Slightly more frequent in technical/engineering contexts in AmE, but equally common in figurative use in both varieties.
Vocabulary
Collocations
Grammar
Valency Patterns
[Agent] corrodes [Patient] (transitive): The acid corroded the pipe.[Patient] corrodes (intransitive): The metal will corrode if exposed.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Corrode away at (something/someone)”
Usage
Context Usage
Business
The scandal threatened to corrode investor confidence in the entire sector.
Academic
The study examines how social inequality can corrode the foundations of democratic participation.
Everyday
Leave that bike out in the rain and the chain will corrode.
Technical
The alloy was specifically engineered to resist corroding in high-salinity environments.
Examples
By Part of Speech
verb
British English
- The salt air will corrode the fittings on your boat if you don't rinse them.
- Constant negativity can corrode even the strongest friendship.
American English
- That cheap coating won't stop the steel from corroding.
- The lawyer argued that the government's actions corroded public trust.
adverb
British English
- The metal degraded corrosively in the experimental chamber.
- The criticism acted corrosively on team morale.
American English
- The acid worked corrosively, eating through the container in hours.
- Rumours spread corrosively through the small community.
adjective
British English
- The corroded section of the water main finally gave way, causing a flood.
- They replaced the corroded battery terminals.
American English
- Inspectors found a badly corroded beam in the bridge's support structure.
- The corroded connectors were the source of the electrical fault.
Examples
By CEFR Level
- Iron can corrode in water.
- The old pipes are starting to corrode and need replacing.
- Salt on the roads makes cars corrode faster.
- If the protective layer is scratched, the underlying metal will quickly corrode.
- His constant lies began to corrode our trust in him.
- The political discourse has been corroded by misinformation and personal attacks.
- Economists warn that inflation will corrode the value of savings.
Learning
Memory Aids
Mnemonic
Imagine a CROCODILE (sounds like 'corrode') slowly eating away a metal bar with its acidic saliva.
Conceptual Metaphor
DAMAGE/WEARING DOWN IS A CHEMICAL PROCESS (e.g., Doubt corrodes trust as rust corrodes iron).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not use 'корродировать' in everyday figurative speech; it's highly technical. Use 'разрушать', 'разъедать', 'подтачивать' instead.
- Avoid confusing with 'коррумпировать' (to corrupt) – they are false friends.
Common Mistakes
- Using 'corrode' for sudden breaking or snapping (incorrect).
- Using it intransitively for non-material things (e.g., 'His confidence corroded' is fine; 'The plan corroded' is unusual).
Practice
Quiz
In which sentence is 'corrode' used in a figurative sense?
FAQ
Frequently Asked Questions
Yes, while its core meaning is chemical destruction of materials, it is very commonly used figuratively to describe the gradual destruction of abstract things like trust, relationships, or moral standards.
'Corrode' specifically implies destruction by chemical reaction (like rust). 'Erode' implies gradual wearing away by physical forces like wind, water, or friction. Figuratively, they are often interchangeable, but 'corrode' can sound more chemically destructive or internal.
It is standard in both formal and technical contexts. In everyday speech, people might use simpler words like 'rust' for metals or 'damage'/'weaken' for figurative uses, but 'corrode' is perfectly acceptable.
The primary noun is 'corrosion'. The related adjective is 'corrosive', which can also be used figuratively (e.g., a corrosive influence).
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