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English Lexicon

Contaminated

/kənˈtæm.ɪ.neɪ.tɪd/
adjectiveCEFR B2 (Upper)Top #3450 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Made impure, polluted, or poisonous by the addition of a deleterious substance or microorganism.

    "Residents were advised not to drink the water because the municipal supply was contaminated."
  2. 2

    Rendered untrustworthy, corrupt, or invalid through improper contact or interference, such as evidence in a legal case.

    "The detective realized the crime scene had been contaminated by careless onlookers."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Latin contaminatus, past participle of contaminare (to defile, taint, or pollute), stemming from contamen (contact, pollution), related to con- (together) and tangere (to touch). Over centuries, the term evolved from general physical mingling or defilement into a precise scientific and environmental descriptor for substances rendered impure by harmful elements.

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