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cinerin

noun
cin·​er·​in | \ ˈsinərə̇n\
plural -s

Definition of cinerin

: 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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History and Etymology for cinerin

Latin ciner-, cinis ashes + English -in

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