ellipsoid
UK/ɪˈlɪp.sɔɪd//ɪˈlɪp.sɔɪd/
ellipsoid noun: a surface, all of whose cross sections are elliptic or circular (including the sphere), that generalises the ellipse and in Cartesian coordinates (x, y, z) is a quadric with equation x²/a² + y²/b² + z²/c² = 1.
Noun
ellipsoid (plural ellipsoids)
- A surface, all of whose cross sections are elliptic or circular (including the sphere), that generalises the ellipse and in Cartesian coordinates (x, y, z) is a quadric with equation x²/a² + y²/b² + z²/c² = 1.
- Polarizability can be imagined as a three-dimensional ellipsoid centred on the centre of the molecule, as shown in Figure 10.4.2002, John Michael Hollas, Basic Atomic and Molecular Spectroscopy, page 133
- Because only ellipsoids of rotation have been adopted in practical geodesy and surveying and triaxial ellipsoids have been limited to theoretical studies, we will use the term ellipsoid for brevity to mean ellipsoid of rotation.2004, Alfred Leick, GPS Satellite Surveying, 3rd edition, page 367
- Such a surface used as a model of the shape of the earth.
- Here the geoid is thirty meters below the ellipsoid.
Adjective
ellipsoid (comparative more ellipsoid, superlative most ellipsoid)
- Shaped like an ellipse; elliptical.
- Of or pertaining to an ellipse; elliptic.
- Having the tridimensional shape of an ellipse rotated on its long axis.
ellipsoid meaning in Tamil, Bengali, Thai and Vietnamese
ellipsoid in Tamil
- நீள்கோளம்
ellipsoid in Bengali
- surface all of whose cross sections are elliptic or circular
- উপবৃত্তাকার upobrittakar
ellipsoid in Thai
- surface all of whose cross sections are elliptic or circular
- ทรงรี song-rii
ellipsoid in Vietnamese
- surface all of whose cross sections are elliptic or circular
- ê-líp-xô-ít, elipxoit
Examples of ellipsoid in a sentence
- A parabolic conoid is a paraboloid; an elliptic conoid is an ellipsoid.
- An ellipsoid of revolution may be either prolate or oblate.
- The embryonic stage, consisting of a small ellipsoid protoconch and ammonitella, ends at about 0.6 mm.
Forms of ellipsoid
| Noun | |
|---|---|
| plural | ellipsoids |
| Adjective | |
| comparative | more ellipsoid |
| superlative | most ellipsoid |
Origin of ellipsoid
From ellipse + -oid.
Words formed from ellipsoid
Phrases with ellipsoid
Questions about ellipsoid
- What does ellipsoid mean?
- Ellipsoid means a surface, all of whose cross sections are elliptic or circular (including the sphere), that generalises the ellipse and in Cartesian coordinates (x, y, z) is a quadric with equation x²/a² + y²/b² + z²/c² = 1.
- What is ellipsoid in Tamil?
- Ellipsoid in Tamil is நீள்கோளம். See Ellipsoid meaning in Tamil.
- What part of speech is ellipsoid?
- Ellipsoid can be a noun or an adjective.
- How do you pronounce ellipsoid?
- Ellipsoid is pronounced /ɪˈlɪp.sɔɪd/ (UK).
- What is the plural of ellipsoid?
- The plural of ellipsoid is ellipsoids.
Words near ellipsoid in the dictionary
Source and license
Adapted from Wiktionary: ellipsoid (page history and authors); ellipsoid (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Qwertygiy-ellipsoid.wav.
Cite this entry: “ellipsoid.” Word.ws, https://word.ws/ellipsoid. Based on Wiktionary, CC BY-SA 4.0.