英语词汇“pyrethrin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pyrethrin
释义	py·re·thrin \pīˈrēthrə̇n also -reth-\ noun (-s) Etymology: International Scientific Vocabulary pyrethr- (from New Latin Pyrethrum) + -in; originally formed as French pyréthrine : either of two oily liquid esters C₂₁H₂₈O_{3rb and C}₂₂H₂₈O₅ of pyrethrolone having high insecticidal properties and occurring especially in pyrethrum flowers — called also respectively pyrethrin I, pyrethrin II
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