平方千米 píngfāngqiānmǐ square kilometer Origin Definitions Defs Strokes Stroke Words Sentences Sents 平方 píngfāng noun square The product of a number multiplied by itself; a square in mathematics; also called 二次幂 èrcìmì or 二次方 èrcìfāng千米 qiānmǐ noun kilometer unit of length equal to 1,000 meters