Noun pyorrhea has 2 senses
  1. pyorrhea, pyorrhoea - discharge of pus
    --1 is a kind of pathology
  2. pyorrhea, pyorrhoea, pyorrhea alveolaris, Riggs' disease - chronic periodontitis; purulent inflammation of the teeth sockets
    --2 is a kind of periodontal disease, periodontitis
    --2 has particulars: pericementoclasia
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