x-axis
Americannoun
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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.
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(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.
noun
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The horizontal axis of a two-dimensional Cartesian coordinate system.
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One of the three axes of a three-dimensional Cartesian coordinate system.
Other Word Forms
Etymology
Origin of x-axis
First recorded in 1925–30
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Vocabulary lists containing x-axis
Expressions and Equations
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Geometry - Introductory
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Geometry - Middle School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
One was labeled on its Y-axis, “Policy Specifics” and its X-axis labeled, “Time.”
From Salon • Oct. 1, 2024
Where is the line where hospitals become overwhelmed, at what speed are we moving along the X-axis, and have we lowered the number of cases enough?
From Slate • Mar. 23, 2020
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
