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Definition of decontaminate
decontaminate
/diːkənˈtæmɪneɪt/
de · con · tam · i · nate
Adjective:decontaminated
•Past Simple:decontaminated
•Past Participle:decontaminated
•Present Participle:decontaminating
decontaminate Lexical Profile
CEFR
C1
Grade
9
Tier
2
Usage
Top 10k
Syllables
5
decontaminate Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• verb
1
To remove dangerous, toxic, infectious, or radioactive substances from an area, object, or person to make it safe.
Example
"Technicians wore protective suits while working to decontaminate the laboratory equipment after the chemical spill."
Synonyms
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Word Origin & Etymology
Coined in the early 20th century, particularly during World War I in reference to neutralizing poison gas, from the prefix 'de-' (indicating removal) and 'contaminate' (from Latin 'contaminatus', meaning 'stained' or 'polluted').
Cite this Entry
Wordmom. (2026). Definition of Decontaminate. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/decontaminate