allethrin

[ al-uh-thrin ]
/ ˈæl ə θrɪn /

noun Chemistry.

a clear, amber, viscous liquid, C19H26O3, used as an insecticide.

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Origin of allethrin

1945–50; all(yl) + (pyr)ethrin, equivalent to Pyrethr(um) name of a genus of composite plants + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for allethrin

allethrin
/ (æˈlɛθrɪn) /

noun

a clear viscous amber-coloured liquid used as an insecticide and synergist. Formula: C 19 H 26 O 3; relative density: 1.005

Word Origin for allethrin

C20: from all (yl) + (pyr) ethrin
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