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

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 2017

These 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.

First Known Use of rotenone

1904, in the meaning defined above

History and Etymology for rotenone

International Scientific Vocabulary, from Japanese roten derris plant

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Dictionary Entries near rotenone

rotch

rote

rotenoid

rotenone

rot grass

rotgut

Roth

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The first known use of rotenone was in 1904

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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

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