偶性 ǒuxìng accident Origin Definitions Defs Strokes Stroke Words Sentences Sents 奇偶性 jī'ǒuxìng parity the property of being either odd or even; odevity对偶性 duì'ǒuxìng duality the state or quality of being two-sided or having two parts; specifically in mathematics and physics, a relationship where two different concepts or systems are shown to be equivalent