Definition of neonicotinoid
: any of a class of systemic water-soluble insecticides (such as imidacloprid) chemically related to nicotine that are used especially in agriculture to control destructive pests (such as aphids and mites) and that selectively bind to the postsynaptic nicotinic receptors of insects to produce paralysis and death The class of chemicals, called neonicotinoids, is used in agricultural fields worldwide to reduce crop-eating pests.— Beth Mole Neonicotinoids … are applied as seed or soil treatments, and also directly to the foliage of vegetable, orchard, field, turf and ornamental crops.— Kathy Keatley Garvey Several reports have blamed neonicotinoids, a relatively new class of pesticide, for aiding in the nearly decade-long die-off of honeybees.— Douglas Quenqua
— called also neonic
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