† pyoptysisn. [ < pyo-comb. form + ancient Greek πτύσις spitting (see haemoptysisn.); compare earlier haemoptysisn.] Obsoleterare expectoration of pus.
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1839 R. DunglisonMed. Lexicon (ed. 2) 720/1Pyoptysis.
1862 T. K. ChambersRenewal Life xii. 180 A patient of mine, over fifty, with copious Pyoptysis and condensed lungs (probably tubercular) from his youth.