American English

Definition of toxic adjective from the Oxford Advanced American Dictionary



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  1. 1containing poison; poisonous toxic chemicals/fumes/gases/substances to dispose of toxic waste Many pesticides are highly toxic. opposite nontoxic
  2. 2toxic debt/loan/asset/investment a level of debt or high-risk investment that causes very serious problems for a bank or other financial institution
  3. 3[usually before noun] (informal) (of a person) having a very unpleasant personality, especially in the way they like to control and influence other people in a dishonest way
See the Oxford Advanced Learner's Dictionary entry: toxic

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