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单词 streptonigrin
释义
strep·to·ni·grin (strĕptə-nīgrĭn)
n.
A highly toxic antibiotic, C25H22N4O8, produced by an actinomycete (Streptomyces flocculus) and active against various types of tumors.

[STREPTO- + Latin niger, nigr-, black; see nekw-t- in the Appendix of Indo-European roots + -IN.]
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