noun · 12 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
Received-Pronunciation:/ɪˈɹəʊʒən/
Canada, General-American:/ɪˈɹoʊʒən/
Canada, General-American:/əˈɹoʊʒən/
Midwestern-US:Recorded audio is listed in the source snapshot.
Australian:/ɪˈɹəʉʒən/
New-Zealand:/əˈɹɐʉʒən/
CMU ARPABET:IH0 R OW1 ZH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The result of having been worn away or eroded, as by a glacier on rock or the sea on a cliff face.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The changing of a surface by mechanical action, friction, thermal expansion contraction, or impact.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
The gradual loss of something as a result of an ongoing process.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively, uncountable
Examples
the erosion of a person's trust
trademark erosion, caused by everyday use of the trademarked term
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
Destruction by abrasive action of fluids.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
One of two fundamental operations in morphological image processing from which all other morphological operations are derived.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: image processing
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
Loss of tooth enamel due to non-bacteriogenic chemical processes.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: dentistry, medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
noun
Meaning 7
A shallow ulceration or lesion, usually involving skin or epithelial tissue.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
8
noun
Meaning 8
In morphology, a basic operation (denoted ⊖); see Erosion (morphology).
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
9
noun
Meaning 9
erosion by chemical action
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: corrosion, corroding
Antonyms: none provided
Broader terms: chemical process, chemical change, chemical action
after the accounting scandal there was an erosion of confidence in the auditors
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: decline, diminution
12
noun
Meaning 12
condition in which the earth's surface is worn away by the action of water and wind
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: environmental condition
History
Etymology
From Middle French erosion, from Latin ērōsiō (“eating away”), derived from ērōdō. The first known occurrence in English was in the 1541 translation by Robert Copland of Guy de Chauliac's medical text The Questyonary of Cyrurygens. Copland used erosion to describe how ulcers developed in the mouth. By 1774 erosion was used outside medical subjects. Oliver Goldsmith employed the term in the more contemporary geological context, in his book Natural History, with the quote : "Bounds are thus put to the erosion of the earth by water."
Across languages
Translations
85 source translations are retained for this English entry.
Belarusian:
эро́зія
(erózija)
— the result of having being eroded
Breton:
krignerezh
— the result of having being eroded
Bulgarian:
ерозия
(erozija)
— the result of having being eroded
Catalan:
erosió
— the result of having being eroded
Chinese Mandarin:
磨蝕 /磨蚀
(móshí)
— the result of having being eroded
Chinese Mandarin:
侵蝕 /侵蚀
(qīnshí)
— the result of having being eroded
Czech:
eroze
— the result of having being eroded
Danish:
erosion
— the result of having being eroded
Danish:
afslidning
— the result of having being eroded
Dutch:
erosie
— the result of having being eroded
Finnish:
eroosio
— the result of having being eroded
French:
érosion
— the result of having being eroded
Friulian:
erosion
— the result of having being eroded
Georgian:
ეროზია
(erozia)
— the result of having being eroded
German:
Erosion
— the result of having being eroded
Greek:
αποσάθρωση
(aposáthrosi)
— the result of having being eroded
Hungarian:
erózió
— the result of having being eroded
Italian:
erosione
— the result of having being eroded
Japanese:
浸食
(shinshoku)
— the result of having being eroded
Kapampangan:
banlik
— the result of having being eroded
Kazakh:
мүжілу
(müjılu)
— the result of having being eroded
Korean:
부식
(busik)
— the result of having being eroded
Latvian:
erozija
— the result of having being eroded
Macedonian:
ерозија
(erozija)
— the result of having being eroded
Norwegian Bokmål:
erosjon
— the result of having being eroded
Norwegian Nynorsk:
erosjon
— the result of having being eroded
Polish:
erozja
— the result of having being eroded
Portuguese:
erosão
— the result of having being eroded
Romanian:
eroziune
— the result of having being eroded
Russian:
эро́зия
(erózija)
— the result of having being eroded
Serbo-Croatian:
erozija
— the result of having being eroded
Serbo-Croatian:
odron
— the result of having being eroded
Serbo-Croatian:
odronjenje
— the result of having being eroded
Slovak:
erózia
— the result of having being eroded
Spanish:
erosión
— the result of having being eroded
Swedish:
erosion
— the result of having being eroded
Tagalog:
us-os
— the result of having being eroded
Ukrainian:
еро́зія
(erózija)
— the result of having being eroded
Vietnamese:
xói mòn
— the result of having being eroded
Welsh:
erydiad
— the result of having being eroded
Bulgarian:
ерозия
(erozija)
— the changing of a surface by mechanical action
Catalan:
erosió
— the changing of a surface by mechanical action
Danish:
erosion
— the changing of a surface by mechanical action
Esperanto:
erozio
— the changing of a surface by mechanical action
Finnish:
kuluminen
— the changing of a surface by mechanical action
Finnish:
eroosio
— the changing of a surface by mechanical action
French:
érosion
— the changing of a surface by mechanical action
German:
Erosion
— the changing of a surface by mechanical action
Hungarian:
erózió
— the changing of a surface by mechanical action
Irish:
líomhadh
— the changing of a surface by mechanical action
Latvian:
erozija
— the changing of a surface by mechanical action
Māori:
ngāhorohoro
— the changing of a surface by mechanical action
Norwegian Bokmål:
erosjon
— the changing of a surface by mechanical action
Norwegian Nynorsk:
erosjon
— the changing of a surface by mechanical action
Polish:
erozja
— the changing of a surface by mechanical action
Portuguese:
erosão
— the changing of a surface by mechanical action
Romanian:
eroziune
— the changing of a surface by mechanical action
Romanian:
erodare
— the changing of a surface by mechanical action
Serbo-Croatian:
erozija
— the changing of a surface by mechanical action
Spanish:
erosión
— the changing of a surface by mechanical action
Tagalog:
sapudpod
— the changing of a surface by mechanical action
Tagalog:
pagkapudpod
— the changing of a surface by mechanical action
Bulgarian:
разяждане
(razjaždane)
— destruction by abrasive action of fluids
Catalan:
erosió
— destruction by abrasive action of fluids
Danish:
erosion
— destruction by abrasive action of fluids
Esperanto:
erozio
— destruction by abrasive action of fluids
Finnish:
eroosio
— destruction by abrasive action of fluids
Finnish:
syöpyminen
— destruction by abrasive action of fluids
French:
érosion
— destruction by abrasive action of fluids
German:
Erosion
— destruction by abrasive action of fluids
Hungarian:
erózió
— destruction by abrasive action of fluids
Norwegian Bokmål:
erosjon
— destruction by abrasive action of fluids
Norwegian Nynorsk:
erosjon
— destruction by abrasive action of fluids
Polish:
erozja
— destruction by abrasive action of fluids
Portuguese:
erosão
— destruction by abrasive action of fluids
Serbo-Croatian:
erozija
— destruction by abrasive action of fluids
Spanish:
erosión
— destruction by abrasive action of fluids