Definitions for spheroid
ˈsfɪər ɔɪdspher·oid

Princeton's WordNetRate this definition:0.0 / 0 votes

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"

WiktionaryRate this definition:0.0 / 0 votes

1. spheroidnoun

   A solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis.

   UFOs are reported as being either oblate (saucer-shaped) or prolate (cigar-shaped) spheroids.

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. SPHEROIDnoun

   A body oblong or oblate, approaching to the form of a sphere.

   Etymology: σφᾶιϱα and ἔιδος; spheroide, Fr.

   They are not solid particles, by the necessity they are under to change their figures into oblong spheroids, in the capillary vessels. George Cheyne, Phil. Princ.

WikipediaRate this definition:0.0 / 0 votes

1. Spheroid

   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).

ChatGPTRate this definition:0.0 / 0 votes

1. spheroid

   A spheroid is a three-dimensional geometric shape that is similar to a sphere but is not perfectly round, meaning it is slightly elongated or flattened at the poles. It comes in two types: oblate spheroids, which are flattened at the poles (like Earth), and prolate spheroids, which are elongated at the poles. In general, it's an ellipsoid where two of the three principal axes have the same length.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Spheroidnoun

   a body or figure approaching to a sphere, but not perfectly spherical; esp., a solid generated by the revolution of an ellipse about one of its axes

2. Etymology: [L. spheroides ball-like, spherical, Gr. ; sphere + e'i^dos form: cf. F. sphrode.]

WikidataRate this definition:0.0 / 0 votes

1. Spheroid

   A spheroid, or ellipsoid of revolution 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. If the ellipse is rotated about its major axis, the result is a prolate spheroid, like an American football or rugby ball. If the ellipse is rotated about its minor axis, the result is an oblate spheroid, like a lentil. If the generating ellipse is a circle, the result is a sphere. Because of the combined effects of gravitation and rotation, the Earth's shape is roughly that of a sphere slightly flattened in the direction of its axis. For that reason, in cartography the Earth is often approximated by an oblate spheroid instead of a sphere. The current World Geodetic System model uses a spheroid whose radius is 6,378.137 km at the equator and 6,356.752 km at the poles.

Dictionary of Nautical TermsRate this definition:0.0 / 0 votes

1. spheroid

   The figure formed by the rotation of an ellipse, differing little from a circle.

How to pronounce spheroid?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say spheroid in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of spheroid in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of spheroid in Pythagorean Numerology is: 4

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=spheroid
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Spheroid
3. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=spheroid
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Spheroid
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/spheroid
7. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=spheroid
8. ^ Dictionary of Nautical Terms
   https://www.gutenberg.org/cache/epub/26000/pg26000-images.html#:~:text=spheroid