Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A highly toxic antibiotic, C25H22N4O8, produced by an actinomycete (Streptomyces flocculus) and active against various types of tumors.

Etymologies

strepto- + Latin niger, nigr-, black; + -in.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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