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Showing results for decontaminate. Search instead for decontaminator.
Synonyms

decontaminate

American  
[dee-kuhn-tam-uh-neyt] / ˌdi kənˈtæm əˌneɪt /

verb (used with object)

decontaminated, decontaminating
  1. to make (an object or area) safe for unprotected personnel by removing, neutralizing, or destroying any harmful substance, as radioactive material or poisonous gas.

  2. to make free of contamination; purify.

    to decontaminate a sickroom.


decontaminate British  
/ ˌdiːkənˈtæmɪˌneɪt /

verb

  1. (tr) to render (an area, building, object, etc) harmless by the removal, distribution, or neutralization of poisons, radioactivity, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • decontaminant noun
  • decontamination noun
  • decontaminative adjective
  • decontaminator noun

Etymology

Origin of decontaminate

First recorded in 1935–40; de- + contaminate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Workers have complained of chemical burns from the waste material generated by the tunneling process, and firefighters must decontaminate their equipment after conducting rescues from the project sites.

From Salon • Oct. 12, 2025

That’s sent water treatment operators scrambling to find ways to decontaminate water supplies without breaking the bank.

From Science Magazine • Nov. 20, 2024

The MIT team found that this process could effectively decontaminate water with low concentrations of lead.

From Science Daily • May 15, 2024

She says if you don't, it will become more "heavily contaminated" and then harder to decontaminate in the wash.

From BBC • Sep. 9, 2023

A few essential manufactures had also been revived, mostly in the form of machine shops to decontaminate engine parts.

From The Year When Stardust Fell by Jones, Raymond F.