mitomycin

[ mī′tə-mīsĭn ]

n.

Any of a group of antibiotics produced by the soil actinomycete Streptomyces caespitosus that inhibit DNA synthesis and are used against bacteria and cancerous tumor cells.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.