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.
1 Go to your drugstore and buy Cetaphil cleanser (no prescription needed) in the soap department. 2  It works by coating the lice and suffocating them. 3  Apply the Cetaphil cleanser throughout the scalp to dry hair. 4  After all the hair is wet, wait 2 minutes for Cetaphil to soak in.