contamination
part of speech
noun (contamination, uncountable)
meaning for a pupil
1) The state of being made dirty, impure or harmful by something unwanted (water contamination). tree →
2) The act or process of contaminating something. tree →
3) (science) Unwanted material spoiling a sample or experiment. tree →
sense in the lessons
In health, science and news, contamination of water, food or air can make people ill; «cross-contamination» in kitchens spreads germs from raw to cooked food. In environment lessons, radioactive or chemical contamination can last a long time. It tells the reader there is something harmful where it shouldn't be.
examples
- The water company found contamination in the reservoir. tree →
- Cross-contamination happens when raw meat touches cooked food. tree →
- Food labels warn about contamination with nuts. tree →
- Scientists wear gloves to avoid contamination. tree →
- Radioactive contamination stayed near Chernobyl for many years. tree →
- The beach was closed because of sewage contamination. tree →
note
Uncountable: no «a», no plural. Verb: contaminate. «Cross-contamination» is an important food-safety word: allergens (like nuts) can also cross-contaminate food, which is dangerous for people with allergies.
Trees and pragmatics
Every meaning and example of «contamination» parsed by Mova, each sentence with its dependency tree and frames.