呈阴性 chéngyīnxìng to test negative Origin Definitions Defs Strokes Stroke Words Sentences Sents 呈 chéng verb to assume To assume or show a certain form, color, or appearance; to appear.阴性 陰性 yīnxìng adjective negative The result of a medical test or screening showing that a specific condition, pathogen, or reaction is not present.