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单词 gramicidin
释义 gram·i·ci·din
\ˌgraməˈsīdən\ noun
(-s)
Etymology: gram-positive + -i- + -cide + -in
: a crystalline antibiotic of a polypeptide nature produced by a soil bacterium (Bacillus brevis) that is active against most gram-positive disease-producing bacteria in local infections but when introduced into the blood stream is destructive of red blood cells — see tyrothricin
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