| 单词 | gramicidin | 
| 释义 | Word Frequency gramicidin or gramicidin D (ˌɡræmɪˈsaɪdɪn) noun an antibiotic used in treating local Gram-positive bacterial infections: obtained from the soil bacterium  Bacillus brevis Word originC20: from Gram(-positive) + -cid(e) + -in | 
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