mi·​to·​my·​cin | \ ˌmī-tə-ˈmī-sᵊn How to pronounce mitomycin (audio) \

Definition of mitomycin

: a complex of antibiotic substances that is produced by a Japanese streptomyces (Streptomyces caespitosus) especially : one form C15H18N4O5 that inhibits DNA synthesis and is used as an antineoplastic agent

Examples of mitomycin in a Sentence

Recent Examples on the Web A shortage of the bladder-cancer drug BCG in 2014 and 2015 led to sharp price increases for a less effective alternative treatment, mitomycin, according to research published online Wednesday by the New England Journal of Medicine. Peter Loftus, WSJ, 12 Apr. 2017

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

First Known Use of mitomycin

1956, in the meaning defined above

History and Etymology for mitomycin

probably from mito- (taken as a combining form of mitosis) + -mycin

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The first known use of mitomycin was in 1956

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Cite this Entry

“Mitomycin.” Dictionary, Merriam-Webster, Accessed 2 Oct. 2022.

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More Definitions for mitomycin


mi·​to·​my·​cin | \ ˌmīt-ə-ˈmīs-ᵊn How to pronounce mitomycin (audio) \

Medical Definition of mitomycin

1 : a complex of antibiotic substances which is produced by a Japanese bacterium of the genus Streptomyces (S. caespitosus)
2 : a component C15H18N4O5 of mitomycin that inhibits DNA synthesis and is used as an antineoplastic in the palliative treatment of some carcinomas

called also mitomycin C

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