歐幾里得幾何 ōujǐlǐdéjǐhé Euclidean geometry Definitions Defs Origin Strokes Stroke Words Sentences Sents 欧几里得 歐幾里得 ōujǐlǐdé Euclid Euclid of Alexandria (c. 300 BC), the Greek mathematician known for his work on geometry in the 几何原本 jǐhéyuánběn (the Elements)几何 幾何 jǐhé geometry geometry; often used as a short form for 几何学 jǐhéxué
