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BNC: 20649 COCA: 12756
arsenic
noun [U] /ˈɑː(r)s(ə)nɪk/
  1. a chemical element that is a brittle grey semimetal. Its symbol is Ar and it is used in industry and as a poison for killing pests and weeds.
     Synonyms and related words
    Chemical elements: actinium, alkali metal, americium...
BNC: 20649 COCA: 12756
BNC: 20649 COCA: 12756

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