| 单词 | exotoxin |
| 释义 | exotoxin (extremely rare) n WORD FAMILY exotoxin n a toxin that is secreted by microorganisms into the surrounding medium Ant|Hyper endotoxin a toxin that is confined inside the microorganisms and is released only when the microorganisms are broken down or die toxin a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species |
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