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major axis

noun

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


major axis

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


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Word History and Origins

Origin of major axis1

First recorded in 1850–55
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Example Sentences

The smart comes from the “captured-eye carabiners,” special screwgates with a threading eye that keep the lockers oriented vertically—with the load along their strongest, major axis.

Draw the line a b, the major axis, and at a right angle to it the line c d, the minor axis of the figure.

In form it is elliptical, with its major axis measuring about five thousand yards, and its minor about three thousand.

Its form is that of an ellipsoid, with a major axis 26 millimetres in length, while the minor axis measures 11 millimetres.

Draw a horizontal line, A, which is in the direction of the major axis of the ellipse—that is, the longest distance across.

Neither is the doorway of this pylon in alignment with the other doorways on the major axis of the building.

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major arcanaMajor Barbara