What does ellipsoid of revolution mean?

Definitions for ellipsoid of revolution
el·lip·soid of rev·o·lu·tion

This dictionary definitions page includes all the possible meanings, example usage and translations of the word ellipsoid of revolution.

Princeton's WordNet

  1. spheroid, ellipsoid of revolutionnoun

    a shape that is generated by rotating an ellipse around one of its axes

    "it looked like a sphere but on closer examination I saw it was really a spheroid"


  1. ellipsoid of revolution

    A spheroid, also known as an ellipsoid of revolution or rotational ellipsoid, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters. A spheroid has circular symmetry. If the ellipse is rotated about its major axis, the result is a prolate spheroid, elongated like a rugby ball. The American football is similar but has a pointier end than a spheroid could. If the ellipse is rotated about its minor axis, the result is an oblate spheroid, flattened like a lentil or a plain M&M. If the generating ellipse is a circle, the result is a sphere. Due to the combined effects of gravity and rotation, the figure of the Earth (and of all planets) is not quite a sphere, but instead is slightly flattened in the direction of its axis of rotation. For that reason, in cartography and geodesy the Earth is often approximated by an oblate spheroid, known as the reference ellipsoid, instead of a sphere. The current World Geodetic System model uses a spheroid whose radius is 6,378.137 km (3,963.191 mi) at the Equator and 6,356.752 km (3,949.903 mi) at the poles. The word spheroid originally meant "an approximately spherical body", admitting irregularities even beyond the bi- or tri-axial ellipsoidal shape; that is how the term is used in some older papers on geodesy (for example, referring to truncated spherical harmonic expansions of the Earth's gravity geopotential model).

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How to say ellipsoid of revolution in sign language?


  1. Chaldean Numerology

    The numerical value of ellipsoid of revolution in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of ellipsoid of revolution in Pythagorean Numerology is: 3


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"ellipsoid of revolution." Definitions.net. STANDS4 LLC, 2023. Web. 30 May 2023. <https://www.definitions.net/definition/ellipsoid+of+revolution>.

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