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pyrethroid
[ pahy-ree-throid, -reth-roid ]
/ paɪˈri θrɔɪd, -ˈrɛθ rɔɪd /
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noun Chemistry.
any of several synthetic compounds that are similar to but more persistent than natural pyrethrins.
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Origin of pyrethroid
First recorded in 1950–55; pyrethr(in) + -oid
Words nearby pyrethroid
Pyrénées-Atlantiques, Pyrénées-Orientales, pyrenocarp, pyrenoid, pyrethrin, pyrethroid, pyrethrum, pyretic, pyretotherapy, Pyrex, pyrexia
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for pyrethroid
pyrethroid
/ (paɪˈriːθrɔɪd) /
noun
any of various chemical compounds having similar insecticidal properties to pyrethrin
adjective
of or relating to such compounds
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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