Noun
fipronil (uncountable)
(organic chemistry) A broad-spectrum insecticide, belonging to the phenylpyrazole family, that disrupts the insect's central nervous system.
Commonly used to get rid of fleas, lice and ticks from animals, fipronil is banned by the EU from use in the food industry. Source: Internet
Germany recalls contaminated Dutch eggs in fipronil scareSix states are told to pull 73000 eggs from sale after residue from an insecticide is detected. Source: Internet