Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Fiat(noun) an authoritative command or order to do something; an effectual decree. 2  Fiat(noun) a warrant of a judge for certain processes. 3  Fiat(noun) an authority for certain proceedings given by the Lord Chancellor's signature.
HEAD LICE PRODUCTS. Our ClearLice lice treatment products will naturally get rid of lice from your head and home (clothing, bedding, furniture, carpets, and car interior) in just one day. ClearLice lice prevention products will help prevent lice from infesting your life.
TWO TYPES OF PESTICIDES IN TODAY'S HEAD LICE PRODUCTS. There are two main pesticides used in most head lice products available today: lindane and pyrethrins. LINDANE. For many years, lindane (Kwell), an organochlorine pesticide available only by prescription, was the treatment of choice for head lice. It is still recommended by many medical personnel who have not taken the time to acquaint themselves with its potential health hazards to humans.