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py·or·rhea or chiefly Brit py·or·rhoea .pī-ə-'rē-ə n
1) a discharge of pus
2) an inflammatory condition of the periodontium that is an advanced form of periodontal disease associated esp. with a discharge of pus from the alveoli and loosening of the teeth in their sockets called also Riggs' disease
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py·or·rhea (pi″o-reґə) [pyo- + -rrhea] 1. periodontitis (def. 1). 2. marginal periodontitis.Medical dictionary. 2011.