contaminationn.
英 kən,tæmɪ'neɪʃən | 美
中文n. 污染，玷污；污染物
词根词源
contamination (n.)early 15c., from Latin contaminationem (nominative contaminatio), noun of action from past participle stem of contaminare (see contaminate). Figurative sense is from c. 1620; specifically of radioactivity from 1913.
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