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rotenone
noun
ro·te·none
| \ ˈrō-tə-ˌnōn
\
\
Definition of rotenone
: a crystalline insecticide C23H22O6 obtained from the roots of several tropical plants (such as a derris) that is highly toxic to fish but is of low toxicity to warm-blooded animals and is used especially in home gardens
Examples of rotenone in a Sentence
Recent Examples on the Web
The rotenone naturally breaks down from exposure to sunlight and is expected to fully degrade in about 10 days. — Bill Roth, Anchorage Daily News, "Biologists scoop up invasive goldfish at Cuddy Pond," 24 July 2019 Sikorsky harvested 12 fish, flew them to a private hatchery, and arranged to have the pond sterilized with rotenone, a pesticide dropped from, ironically, two Sikorsky Blackhawks contracted from the National Guard. — Brian Irwin, BostonGlobe.com, "Turn-of-the-century sporting camp offers relaxation, fly fishing," 11 July 2018 Nymphs can be controlled with insecticidal soap, pyrethrum, rotenone or neem. — Ellen Nibali, baltimoresun.com, "Garden Q&A: Black-eyed Susans with fungal leaf spot disease," 11 July 2017These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rotenone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for rotenone
rotenone
noun
ro·te·none
| \ ˈrōt-ᵊn-ˌōn
\
\
Medical Definition of rotenone
: a crystalline insecticide C23H22O6 that is of low toxicity for warm-blooded animals and is used especially in home gardens