cy·​to·​tox·​in | \ ˌsī-tə-ˈtäk-sən How to pronounce cytotoxin (audio) \

Definition of cytotoxin

: a substance (such as a toxin or antibody) having a toxic effect on cells

Examples of cytotoxin in a Sentence

Recent Examples on the Web The venom is a cytotoxin (cell-destroying) that produces massive tissue damage, and what is reported to be the most agonizing of any snakebite. David E. Petzal, Field & Stream, "The World’s Deadliest Snakes," 30 June 2020 Venoms contain cytotoxins, cardiotoxins, hemotoxins and neurotoxins, components of which can be used in the treatment of cancer and many other medical conditions. Malia Wollan, New York Times, "How to Hold a Venomous Snake," 30 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cytotoxin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of cytotoxin

1900, in the meaning defined above

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Time Traveler for cytotoxin

Time Traveler

The first known use of cytotoxin was in 1900

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Cite this Entry

“Cytotoxin.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2021.

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More Definitions for cytotoxin


cy·​to·​tox·​in | \ ˌsīt-ə-ˈtäk-sən How to pronounce cytotoxin (audio) \

Medical Definition of cytotoxin

: a substance (as a toxin or antibody) having a toxic effect on cells

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