/jen'teuh muy"sin/, n. Pharm.
a highly toxic broad-spectrum antibiotic mixture of related aminoglycoside substances derived from the actinomycete bacterium Micromonospora purpurea, used in its sulfate form in the treatment of severe Gram-negative infections.
[1963; resp. of gentamycin, prob. equiv. to GENT(IAN VIOLET) + -a- (as in KANAMYCIN) + -MYCIN; so called from the color of the source bacterium]

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Universalium. 2010.