What is the term used to describe the Earth's true geometric shape, which accounts for the equatorial bulge caused by rotation?

Answer

Oblate spheroid

Due to the centrifugal force generated by the planet's rotation, the Earth is not a perfect sphere but is better described geometrically as an oblate spheroid.

What is the term used to describe the Earth's true geometric shape, which accounts for the equatorial bulge caused by rotation?
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