contaminant

/kənˈtæmɪnənt/ (bre, ipa) · /kənˈtæmɪnənt/ (ame, ipa) · /kən-ˈta-mə-nənt/ (ame, mw)

contaminant — 名詞

  • contaminantsingular
  • contaminantsplural

1. a substance that gets into food, water, or another material and makes it dirty,

1.名詞C1
釋義

污染物

混入後使東西不純或有害的物質

a substance that gets into food, water, or another material and makes it dirty, unsafe, or no longer pure.

例句

The lab found a contaminant in the cough syrup after several children got sick.

實驗室在幾個孩子生病後，從止咳糖漿裡發現了污染物。

find a contaminant in [product]

Tiny metal flakes became a contaminant in the flour during packaging.

包裝時，極小的金屬碎片成了麵粉中的污染物。

同義詞
  • pollutant

    usually narrower and more strongly linked to harm in air, water, or soil

  • impurity

    often more technical and can describe an unwanted substance even when it is not dangerous

  • toxin

    stresses poisonous effect, especially in biology or medicine

  • residue

    emphasizes material left behind after a process and does not always imply danger

文法句型

find a contaminant in [food/water/sample]

remove contaminants from [something]

用法筆記

Often used in food safety, laboratory, and environmental contexts. It names the unwanted material itself, not the process or condition of contamination.

常見錯誤

❌The lab found a contamination in the milk.
✅The lab found a contaminant in the milk.
💡contamination is the dirty condition or event; contaminant is the substance itself.