形容詞 elliptical:

1. rounded like an egg
   同義詞：egg-shaped, elliptic, oval, oval-shaped, ovate, oviform, ovoid, prolate
2. characterized by extreme economy of expression or omission of superfluous elements- H.O.Taylor
   同義詞：elliptic

1. An elliptical track, as for racing or athletic events.
   橢圓形跑道如用于比賽或運動項目的橢圓形跑道
2. A cylindrical surface or solid all of whose sections perpendicular to the elements are elliptical.
   橢圓柱與組成要素垂直的所有圓柱形表面或柱體的部分是橢圓形的柱體
3. The Earth's path round the sun is elliptical.
   地球繞太陽的軌道是橢圓形的。