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单词 cinerin
释义 cin·er·in
\ˈsinərə̇n\ noun
(-s)
Etymology: Latin ciner-, cinis ashes + English -in
: either of two oily liquid esters C20H28O3 and C21H28O5 of cinerolone having high insecticidal properties and occurring in pyrethrum flowers and distinguished by the numerals I and II
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