Meaning of “arsenic” in the English Dictionary

american-english dictionary

"arsenic" in British English

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arsenicnoun [ U ]

uk /ˈɑː.sən.ɪk/ us /ˈɑːr.sən.ɪk/ symbol As

Examples from literature

  • All of Mary’s victims apparently died from stomach illnesses, but in fact this condition has very similar symptoms to the deadly poison arsenic. 
  • Arsenic could be used secretly and provided very little in the way of evidence. 
  • By the 8th century CE, Arabian doctors had found ways to produce arsenic so that it was clear and had little smell, making it almost unnoticeable and very popular. 
  • In fact, arsenic became so widely used among the rich and powerful, as a convenient way to deal with opponents, that it eventually became known as “inheritance powder.” 
  • In the 19th century, arsenic was freely available and was often used as a cleaning product. 
  • People said that Lucrezia Borgia kept arsenic in a special ring. 
  • Substances like arsenic were commonly found in rat poison, cosmetics that women used, and cleaning products. 
  • With her back turned, she opened the ring and secretly poured the arsenic into her victims’ drinks. 

(Definition of “arsenic” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"arsenic" in American English

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arsenicnoun [ U ]

us /ˈɑr·sə·nɪk/

a very poisonous substance, used to kill rats (= animals like mice, but larger) and harmful insects

(Definition of “arsenic” from the Cambridge Academic Content Dictionary © Cambridge University Press)