a surface whose plane sections are all ellipses or circles
形容词 ellipsoid:
in the form of an ellipse
同义词：ellipsoidal, spheroidal, non-circular
ellipsoid详细解释
el.lip.soid n.（名词）A geometric surface, all of whose plane sections are either ellipses or circles.椭球，椭面：其所有切面都是椭圆或圆一种几何面 【引伸】 ellip.soid. 或 el.lipsoid.al
