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ellipticity

[ ih-lip-tis-i-tee, el-ip-, ee-lip- ]

noun

  1. the degree of divergence of an ellipse from a circle.


ellipticity

/ ɪlɪpˈtɪsɪtɪ; ˌɛl- /

noun

  1. the degree of deviation from a circle or sphere of an elliptical or ellipsoidal shape or path, measured as the ratio of the major to the minor axes
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of ellipticity1

1745–55; elliptic- ( elliptical ) + -ity
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Example Sentences

The fact that there is no measurable ellipticity is, I think, one which on first consideration would not be expected.

We may consider this spheroid to be that of the earth, the ellipticity being greatly exaggerated.

The ellipticity of Jupiter indicated by these figures is sufficiently marked to be obvious without any refined measures.

Their ovalness or "ellipticity" is, however, in each case not by any means of the same degree.

To put it paradoxically, it is an ellipse which has no ellipticity, an oval without any ovalness!

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elliptic integralelliptic paraboloid