病毒性 bìngdúxìng viral Definitions Defs Origin Strokes Stroke Words Sentences Sents 病毒 bìngdú noun virus a type of tiny microorganism that causes infection and can only reproduce inside the living cells of a host性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".