noun🔗ShareピレトリンAny of a number of naturally occurring insecticides extracted from the pyrethrum plant; unusual in having a cyclopropane ring."The gardener sprayed pyrethrin on the roses to kill the aphids. "庭師はアブラムシを駆除するためにバラにピレトリンを散布した。compoundsubstancechemistryagricultureinsectplantsciencebiologynatureenvironmentChat with AIVocabulary GamePractice Reading
