cyanide

noun

cy·​a·​nide ˈsī-ə-ˌnīd How to pronounce cyanide (audio)
-nəd
1
: a compound of cyanogen with a more electropositive element or group: such as
2

Examples of cyanide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Wongso was accused of slipping cyanide into the friend's iced Vietnamese coffee at an upscale café in Jan. 2016 in Jakarta, Indonesia, per the New York Times. Christine Pelisek, People.com, 10 June 2025 When ingested, cyanide affects the body's ability to use oxygen. Michileen Martin, MSNBC Newsweek, 26 May 2025 His wife Eva Braun also killed herself by swallowing a cyanide pill. Michael Dorgan, FOXNews.com, 27 Mar. 2025 For example, if an elderly person had ingested cyanide, the cause of death might have been harder to detect. Monica Mercuri, Forbes.com, 28 May 2025 See All Example Sentences for cyanide

Word History

Etymology

International Scientific Vocabulary

First Known Use

1826, in the meaning defined at sense 1

Time Traveler
The first known use of cyanide was in 1826

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Cite this Entry

“Cyanide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cyanide. Accessed 17 Jun. 2025.

Kids Definition

cyanide

noun
cy·​a·​nide ˈsī-ə-ˌnīd How to pronounce cyanide (audio)
-nəd
: a very poisonous compound consisting of carbon and nitrogen with either sodium or potassium

Medical Definition

cyanide

noun
cy·​a·​nide ˈsī-ə-ˌnīd, -nəd How to pronounce cyanide (audio)
: any of several compounds (as potassium cyanide) that contain the radical CN having a chemical valence of one, react with and inactivate respiratory enzymes, and are rapidly lethal producing drowsiness, tachycardia, coma, and finally death

More from Merriam-Webster on cyanide

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