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piperonyl butoxide

American  
[pi-per-uh-nl, pahy-, pip-er-uh-nil] / pɪˈpɛr ə nl, paɪ-, ˈpɪp ər ə nɪl /

noun

Chemistry.

  1. a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.

Etymology

Origin of piperonyl butoxide

1940–45; piperon(al) + -yl; but- (from butyric ) + oxide

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.