传染力 chuánrǎnlì infectivity Origin Definitions Defs Strokes Stroke Words Sentences Sents 传染 傳染 chuánrǎn verb to infect; contagious to infect; to be contagious; (of a disease) to spread from one organism to another力 lì noun power power, efficacy, or force of inanimate things such as wind, water, or fire