neonicotinoid

noun

1. Any of a certain class of insecticides that act on the central nervous system in a similar way to nicotine.

   “Neonicotinoids may be contributing towards the disappearance of butterflies from the countryside, according to the first scientific study to examine the effect of the controversial agricultural pesticides on British butterflies.”

   “He thinks new classes of insecticides introduced in the last 20 years, including neonicotinoids and fipronil, have been particularly damaging as they are used routinely and persist in the environment: “They sterilise the soil, killing all the grubs.””