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bn:00030408n
Noun Concept
Categories: Quadrics, Surfaces, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference
EN
spheroid  ellipsoid of revolution  Oblateness constant  MacLaurin ellipsoid  MacLaurin spheroid
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A shape that is generated by rotating an ellipse around one of its axes WordNet 3.0
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A shape that is generated by rotating an ellipse around one of its axes WordNet 3.0 & Open English WordNet
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. Wikipedia
Volume formed by rotating an ellipse around one of its axes; special case of ellipsoid Wikidata
A spheroid; a solid of revolution generated by rotating an ellipse about one of its axes. Wiktionary
A solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis. Wiktionary
Shape similar to a sphere. Wiktionary (translation)
EN
It looked like a sphere but on closer examination I saw it was really a spheroid WordNet 3.0 & Open English WordNet
An ellipsoid of revolution may be either prolate or oblate. Wiktionary
UFOs are reported as being either oblate (saucer-shaped) or prolate (cigar-shaped) spheroids. Wiktionary