periodontitis

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a disease that attacks the gum and bone and around the teeth
• Syn:
periodontal disease
• Hypernyms:
disease
• Hyponyms:
pyorrhea, pyorrhoea, pyorrhea alveolaris, Riggs' disease, alveolar resorption,
gingivitis, ulatrophia