• synonyms

piperonyl butoxide

[pi-per-uh-nl, pahy-, pip-er-uh-nil]
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noun Chemistry.
  1. a light-brown liquid, C19H30O5, used chiefly as a synergist in certain insecticides.
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Origin of piperonyl butoxide

1940–45; piperon(al) + -yl; but- (from butyric) + oxide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018