pyorrhea /ˌpīəˈrēə / pyorrhea alveolaris, ‹Brit.› pyorrhoea I. noun another term for periodontitis. – origin early 19th cent.: from Greek puo- (from puon ‘pus’) + rhoia ‘flux’ (from rhein ‘to flow’).
periodontitis /ˌperēədänˈtīdəs/ noun [Medicine] inflammation of the tissue around the teeth, often causing shrinkage of the gums and loosening of the teeth.
