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x-axis

[ eks-ak-sis ]

noun

, Mathematics.
, plural x-ax·es [eks, -ak-seez].
  1. Also called axis of abscissas. (in a plane Cartesian coordinate system) the axis, usually horizontal, along which the abscissa is measured and from which the ordinate is measured.
  2. (in a three-dimensional Cartesian coordinate system) the axis along which values of x are measured and at which both y and z equal zero.


x-axis

noun

  1. a reference axis, usually horizontal, of a graph or two- or three-dimensional Cartesian coordinate system along which the x- coordinate is measured
“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


x-axis

/ ĕksăk′sĭs /

  1. The horizontal axis of a two-dimensional Cartesian coordinate system.
  2. One of the three axes of a three-dimensional Cartesian coordinate system.


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Word History and Origins

Origin of x-axis1

First recorded in 1925–30
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Compare Meanings

How does x-axis compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

The value-curve of gold, expressed in money, is a straight line, parallel to the X axis.

The tracer is then placed on the x-axis of the y-curve and clamped to the carriage, and the instrument is ready for use.

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