| 单词 | pyrethroid |
| 释义 | pyrethroid[ pahy-ree-throid, -reth-roid ] / paɪˈri θrɔɪd, -ˈrɛθ rɔɪd / noun Chemistry.any of several synthetic compounds that are similar to but more persistent than natural pyrethrins. Origin of pyrethroidFirst recorded in 1950–55; pyrethr(in) + -oid Words nearby pyrethroidPyrénées-Atlantiques, Pyrénées-Orientales, pyrenocarp, pyrenoid, pyrethrin, pyrethroid, pyrethrum, pyretic, pyreto-, pyretogenesis, pyretogenic Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for pyrethroidpyrethroid / (paɪˈriːθrɔɪd) / nounany of various chemical compounds having similar insecticidal properties to pyrethrin adjectiveof or relating to such compounds 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 |
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