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pyrethrin

Noun CEFR B2

Definitions

Any of a number of naturally occurring insecticides extracted from the pyrethrum plant; unusual in having a cyclopropane ring.

Examples

“Ecoparasite control⟳, with appropriate concentrations of carbaryl, malathion, or pyrethrin dusts, is permissible if the agent is applied externally to both test⟳ and control⟳ animals not less than seven days prior to the start⟳ of the test⟳.”
“The biggest risk⟳ raised in the findings, Mr. Abecassis said, is the exposure to pesticides, which have⟳ been linked to a range of serious illnesses including fatal cancers and organ damage⟳. Six of the tested products contained chemicals like⟳ myclobutanil and pyrethrins in concentrations far above state limits, according to the analysis.”

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

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