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major axis

American  

noun

Mathematics.
  1. the axis of an ellipse that passes through the two foci.


major axis British  

noun

  1. the longer or longest axis of an ellipse or ellipsoid

"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

Etymology

Origin of major axis

First recorded in 1850–55

Example Sentences

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See Examples For:

Determine whether the major axis is horizontal or vertical.

From Textbooks May 6, 2020

The segment connecting the vertices is called the major axis.

From Textbooks May 6, 2020

A segment perpendicular to the major axis that passes through the center and intersects the ellipse in two points is called the minor axis.

From Textbooks May 6, 2020

The widest diameter of the ellipse is called its major axis.

From Textbooks Oct. 13, 2016

Eurasia’s east-west major axis, unlike the Americas’ north-south major axis, permitted diffusion without change in latitude and associated environmental variables.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

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