If something is contaminated by dirt, chemicals, or radiation, they make it dirty or harmful.
例句
Have any fish been contaminated in the Arctic Ocean?北冰洋的魚受到過污染嗎？...vast tracts of empty land, much of it contaminated by years of army activity.大片撂荒的土地，其中大部分由于經年累月的戰火而受到了污染
英漢詞典釋義
n.
污染；弄臟；毒害
panic about food contamination食物污染的恐慌tests for pesticide contamination in food對食物中農藥污染的檢驗There is already a high level of environmental contamination.環境污染的程度已經很高。Wash everything thoroughly to avoid contamination with bacteria.把所有東西都徹底洗凈以避免細菌污染。Always keep food covered to prevent contamination by flies.時常把食物蓋著以防蒼蠅污染。There is a danger of serious contamination from radioactive waste.放射性廢棄物有嚴重污染的危險。We must ensure our children against contamination by bad ideas.我們必須保護我們的兒童不受壞思想的侵蝕。
致污物
houses made uninhabitable by radioactive contamination受放射性污染物影響而不適合居住的房子
英英詞典釋義
Noun
1. the state of being contaminated
2. a substance that contaminates
3. the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors