dioxin
noun/daɪˈɒksɪn/
/daɪˈɑːksɪn/
[countable, uncountable]- a chemical (with a ring structure containing two oxygen atoms) that is formed as a result of some industrial processes. Dioxins are toxic (= poisonous) and cause harm to the environment.Word Originearly 20th cent.: from di- ‘two’ + ox- ‘oxygen’ + -in.
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