mi·​to·​my·​cin ˌmī-tə-ˈmī-sᵊn How to pronounce mitomycin (audio)
: 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 Male mice in the study were exposed to one of three common anticancer drugs---cyclophosphamide, mitomycin C, or procarbazine---and then allowed to mate with untreated females. Sarah Zhang, Discover Magazine, 1 Feb. 2012 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 examples are programmatically compiled from various online sources to illustrate current usage of the word 'mitomycin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


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

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of mitomycin was in 1956

Dictionary Entries Near mitomycin

Cite this Entry

“Mitomycin.” Dictionary, Merriam-Webster, Accessed 23 Apr. 2024.

Medical Definition


mi·​to·​my·​cin ˌmīt-ə-ˈmīs-ᵊn How to pronounce mitomycin (audio)
: a complex of antibiotic substances which is produced by a Japanese bacterium of the genus Streptomyces (S. caespitosus)
: 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

More from Merriam-Webster on mitomycin

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