ellipsoid

柯林斯詞典

ellipsoid /??l?ps??d/

• 1. N a geometric surface, symmetrical about the three coordinate axes, whose plane sections are ellipses or circles. Standard equation: x2/a2 + y2/b2 + z2/c2 = 1, where ±a, ±b, ±c are the intercepts on the x-, y-, and z- axes 橢麪

• 2. N a solid having this shape 橢球形物躰

  the earth is an ellipsoid

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