病原菌 bìngyuánjūn pathogenic bacteria Origin Definitions Defs Strokes Stroke Words Sentences Sents 病原 bìngyuán pathogen cause of disease; pathogen; the origin or source of an illness; often used as a shorthand for pathogenic bacteria 病原菌 bìngyuánjūn菌 jūn noun bacteria germs; bacteria; mold; fungus