corrode

verb

cor·​rode kə-ˈrōd 

corroded; corroding

transitive verb

1

: to eat away by degrees as if by gnawing

especially : to wear away gradually usually by chemical action

the metal was corroded beyond repair

2

: to weaken or destroy gradually : undermine

manners and miserliness that corrode the human spirit

—Bernard De Voto

intransitive verb

: to undergo corrosion

corrodible

kə-ˈrō-də-bəl 

adjective

Did you know?

Corrode comes from Latin corrodere ("to gnaw to pieces"), a combination of the prefix "cor-" (used here as an intensifier with the meaning of "completely") and the verb "rodere" ("to gnaw"). At one time, "corrode" was used to literally indicate the action of gnawing away, as in "woodworms corroded the wood." But it is the more figurative senses from the action of gnawing or eating away that have persisted, as in "salt water corroded the iron" or "graphic content on television and the Internet is corroding the moral fabric of society."

Synonyms

• bite (at)
• eat
• erode
• fret
• gnaw
• nibble

Examples of corrode in a Sentence

Rainwater may corrode the steel containers.

Over time, the pipes become corroded and need to be replaced.

After a few weeks in the ocean, the boat began to corrode.

Years of lies and secrets had corroded their relationship.

Recent Examples on the Web

One of the Northern Fleet’s submarines had sunk, in 1989, and hadn’t been salvaged; its reactor lay at the bottom of the Norwegian Sea, along with two torpedoes with nuclear warheads, corroding in salt water. —Ben Taub, The New Yorker, 9 Sep. 2024

Plastic ones are cheaper but aren’t as sturdy and could start to corrode over time. —Bestreviews, The Mercury News, 6 Sep. 2024

Faster is vital, because in their watery graves, the many land and naval mines, U-boat torpedoes, depth charges, artillery shells, chemical weapons, aerial bombs, and incendiary devices have corroded over almost 80 years. —Paul Hockenos, Smithsonian Magazine, 10 Sep. 2024

Wandering through the winding streets and mildewing apartments of the medieval Tuscan city, Leonardo becomes the quintessential teenage romantic, both bursting with youthful promise and corroding from adolescent alienation. —Patrick Brzeski, The Hollywood Reporter, 2 Sep. 2024

Word History

Etymology

Middle English corroden, borrowed from Latin corrōdere "to gnaw, chew up," from cor-, variant before r of com- com- + rōdere "to gnaw, nibble, eat away" — more at rodent

First Known Use

14th century, in the meaning defined at transitive sense 1

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Kids Definition

corrode

verb

cor·​rode kə-ˈrōd 

corroded; corroding

: to eat or be eaten away by degrees as if by gnawing

a bridge corroded by rust

Medical Definition

corrode

verb

cor·​rode kə-ˈrōd 

corroded; corroding

transitive verb

: to eat away by degrees as if by gnawing

especially : to wear away gradually usually by chemical action

intransitive verb

: to undergo corrosion