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  1. Dictionary
    cyanide
    /ˈsʌɪənʌɪd/

    noun

    • 1. a salt or ester of hydrocyanic acid, containing the anion CN− or the group —CN. The salts are generally extremely toxic.

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  2. en.wikipedia.org › wiki › CyanideCyanide - Wikipedia

    In chemistry, cyanide (from Greek kyanos ' dark blue ') is a chemical compound that contains a C≡N functional group. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom. [1] In inorganic cyanides, the cyanide group is present as the cyanide anion −C≡N. This anion is extremely poisonous.

  3. www.britannica.com › science › cyanideCyanide | Definition, Uses, & Effects | Britannica

    Jun 21, 2024 · cyanide, any compound containing the monovalent combining group CN. In inorganic cyanides, such as sodium cyanide (NaCN), this group is present as the negatively charged cyanide ion; these compounds, which are regarded as salts of hydrocyanic acid, are highly toxic.

  4. www.merriam-webster.com › dictionary › cyanideCyanide Definition & Meaning - Merriam-Webster

    : a compound of cyanogen with a more electropositive element or group: such as. a. : potassium cyanide. b. : sodium cyanide. 2. : cyanogen sense 1. Examples of cyanide in a Sentence.

  5. dictionary.cambridge.org › dictionary › englishCYANIDE | English meaning - Cambridge Dictionary

    CYANIDE | English meaning - Cambridge Dictionary. Meaning of cyanide in English. cyanide. noun [ U ] uk / ˈsaɪə.naɪd / us / ˈsaɪə.naɪd / Add to word list. an extremely powerful poison that can kill people. SMART Vocabulary: related words and phrases. Chemicals, chemical compounds & gases. acetic acid. acetone. acrolein. acrylamide.

  6. www.cdc.gov › chemicalemergencies › factsheetsCyanide: Exposure, Decontamination, Treatment | Chemical...

    Cyanide is a rapidly acting, potentially deadly chemical that interferes with the body’s ability to use oxygen. Cyanide can be a colorless gas or liquid, such as hydrogen cyanide (HCN) or cyanogen chloride (CNCl). Cyanide can also be a crystal (solid) form such as sodium cyanide (NaCN) or potassium cyanide (KCN).

  7. www.dictionary.com › browse › cyanideCYANIDE Definition & Meaning | Dictionary.com

    Any of a large group of chemical compounds containing the radical CN, especially the very poisonous salts sodium cyanide and potassium cyanide. Cyanides are used to make plastics and to extract and treat metals.

  8. dictionary.cambridge.org › us › dictionaryCYANIDE | definition in the Cambridge English Dictionary

    CYANIDE | definition in the Cambridge English Dictionary. Meaning of cyanide in English. cyanide. noun [ U ] us / ˈsaɪə.naɪd / uk / ˈsaɪə.naɪd / Add to word list. an extremely powerful poison that can kill people. SMART Vocabulary: related words and phrases. Chemicals, chemical compounds & gases. acetic acid. acetone. acrolein. acrylamide. adenine.