contamination
Произношение: [kənˌtæmɪˈneɪʃən]
Слово
Контекст: «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.
Пример
The food was tested and found to be free from contamination.
Пример
The water supply had serious contamination problems that made it unsafe to drink.
Пример
What steps can we take to reduce contamination in our environment?
Контекст: «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.
Пример
The laboratory ensured that the samples were protected from contamination.
Пример
Contamination of the sample led to inaccurate results in the experiment.
Пример
How can researchers prevent contamination in their samples?
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