Wiktionary
vinyl fluoride
n. (context organic compound English) The fluorinated alkene CH2=CHF that is used to make polyvinyl fluoride
Wikipedia
Vinyl fluoride
Vinyl fluoride is an organic halide with the chemical formula CHF. It is a colorless gas with a faint etherlike odor. It is used as the monomeric precursor to the fluoropolymer polyvinylfluoride.