正负号 zhèngfùhào plus-minus sign Origin Definitions Defs Strokes Stroke Words Sentences Sents 正 zhèng adjectivenoun positive positive; plus; describes numbers greater than zero or positive electrical charges负号 負號 fùhào minus sign The mathematical symbol '-' used to represent negative values, also called a negative sign; it is the opposite of the 正号 zhènghào.