单词	pyorrhea
释义	pyorrhea noun py·​or·​rhea ˌpī-ə-ˈrē-ə  : purulent inflammation of the sockets of the teeth leading usually to loosening of the teeth Word History Etymology New Latin First Known Use 1878, in the meaning defined above Medical Definition pyorrhea noun py·​or·​rhea variants or chiefly British pyorrhoea ˌpī-ə-ˈrē-ə  1 : a discharge of pus 2 : an advanced form of chronic periodontitis marked especially by the discharge of pus from the alveoli called also Riggs' disease
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