cinerin

[ sin-er-in ]
/ ˈsɪn ər ɪn /

noun Chemistry.

either of two oily, liquid compounds, C20H28O3 or C21H28O5, used as insecticides.
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British Dictionary definitions for cinerin

cinerin
/ (ˈsɪnərɪn) /

noun

either of two similar organic compounds found in pyrethrum and used as insecticides. Formulas: C 20 H 28 O 3 (cinerin I), C 21 H 28 O 5 (cinerin II)

Word Origin for cinerin

C20: from Latin ciner-, cinis ashes + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012