| pyrogallic | (adj) of or relating to pyrogallol |
| pyrogallol | (n) a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer, Syn. pyrogallic acid |
| Pyrogallic | a. [ Pyro- + gallic. ] (Chem.) Pertaining to, derived from, or designating, an acid called pyrogallol. See Pyrogallol. [ 1913 Webster ] |