pyorrhea n discharge of pus n chronic periodontitis; purulent inflammation of the teeth sockets Usage(s) To the "four out of five who have it," gingivitis, forerunner of pyorrhea, is no laughing matter. The effects of a bad case of pyorrhea were beginning to show. If you already have pyorrhea see your dentist for treatment and start using Forhan's. Synonym(s) pyorrhoea pyorrhea alveolaris Riggs' disease