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
随便看	redback spider red bag red-bait red-baiter red-baiting red ball red-banded leaf roller red-banded thrips red baneberry red bark redbark red bartsia red bass red bat red bay red bean red bear red bearberry red beds red beech red bell red-bellied dace red-bellied snake red-bellied snipe red-bellied squirrel

英语词典包含332784条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。