数理 shùlǐ mathematical Origin Definitions Defs Strokes Stroke Words Sentences Sents shùlǐ mathematical 数 數 shù noun mathematical value a mathematical value or concept, such as an integer or an even number理 lǐ verbnoun reason reason; logic; truth; a law or principle governing how things workshùlǐ math and science 数 數 shù noun mathematical value a mathematical value or concept, such as an integer or an even number理 lǐ noun [science] (bound form) natural science; specifically physical science or physics