ellipticity

American  

[ih-lip-tis-i-tee, el-ip-, ee-lip-] / ɪ lɪpˈtɪs ɪ ti, ˌɛl ɪp-, ˌi lɪp- /

noun

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

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ellipticity British  

/ 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

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Etymology

Origin of ellipticity

1745–55; elliptic- ( see elliptical) + -ity

Example Sentences

"We achieved a remarkable milestone in the deep ultraviolet range, where we set a new record for ellipticity," Doumani said.

From Science Daily • Dec. 11, 2023

A fit with a single Sersic component yields an index of 5.5, an ellipticity of about 0.12, and an effective radius Re ≈ 3.4 kpc.

From Nature • Oct. 15, 2017

“Perhaps, evolutionarily, birds stumbled upon this very natural, geometric solution, which is to increase the ellipticity and asymmetry of their eggs,” Dr. Mahadevan said, since doing so allows for greater volume without increasing girth.

From New York Times • Jun. 22, 2017

They first wrote a computer program, named Eggxtractor — who says scientists have no sense of humor? —, that classified eggs based on their ellipticity and asymmetry.

From New York Times • Jun. 22, 2017

It follows from Clairaut’s theorem that if the earth is an oblate spheroid, its ellipticity can be determined from relative values of gravity and the absolute value at the equator involved in c.

From Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966 by Lenzen, Victor Fritz