- 椭圆形 tuǒyuánxíng ovaloval; ellipse
- 椭圆曲线 tuǒyuánqūxiàn elliptic curve(math.) elliptic curve
- 椭圆机 tuǒyuánjī elliptical machineelliptical machine (exercise)
- 椭圆积分 tuǒyuánjīfēn elliptic integral(math.) elliptic integral
- 椭圆形办公室 tuǒyuánxíngbàngōngshì Oval Officethe official office of the President of the United States in the White House
- 椭圆函数 tuǒyuánhánshù elliptic function(math.) elliptic function
