Vulpic :: Vulpic (a.) Pertaining to, derived from, or designating, an acid obtained from a lichen (Cetraria vulpina) as a yellow or red crystalline substance which on decomposition yields pulvinic acid..
Vulpicide :: Vulpicide (n.) One who kills a fox, except in hunting; also, the act of so killing a fox..
Vulpine :: Vulpine (a.) Of or pertaining to the fox; resembling the fox; foxy; cunning; crafty; artful.