
1) Endocrine disruptor 2) Synthetic insecticide
Found on
https://www.crosswordclues.com/clue/fipronil

Fipronil is a broad-use insecticide that belongs to the phenylpyrazole chemical family. Fipronil is a broad-spectrum insecticide that disrupts the insect central nervous system by blocking GABA-gated chloride channels and glutamate-gated chloride (GluCl) channels, resulting in central nervous system toxicity. This causes hyperexcitation of contami...
Found on
http://en.wikipedia.org/wiki/Fipronil

Type: Term Pronunciation: fip-rō′nil Definitions: 1. A phenylpyrazole parasiticide agent that is available as pourable topical solution and spray for flea and tick infestation in dogs and cats; mechanism of action is to disrupt chloride passage through gamma amino butyric acid-mediated channels in nerve cell membranes, resulting in termi...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=33454

Trade name is Frontline. A phenylpyrazole insecticide which acts as a neurotoxin.
Found on
https://www.encyclo.co.uk/local/22445
No exact match found.