contamination
Prononciation : [kənˌtæmɪˈneɪʃən]
Mot
Contexte : « health and safety »
(noun) the presence of harmful substances in something. This can happen in air, water, or food. If you find something in your food that shouldn't be there, that is contamination. It's important to keep our environment clean to avoid contamination.
Exemple
The food was tested and found to be free from contamination.
Exemple
The water supply had serious contamination problems that made it unsafe to drink.
Exemple
What steps can we take to reduce contamination in our environment?
Contexte : « science »
(noun) the introduction of unwanted materials or agents in a sample or environment. In science experiments, contamination can change the results, so scientists must be very careful to keep their samples clean.
Exemple
The laboratory ensured that the samples were protected from contamination.
Exemple
Contamination of the sample led to inaccurate results in the experiment.
Exemple
How can researchers prevent contamination in their samples?
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