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y-axis

[ wahy-ak-sis ]

noun

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


y-axis

noun

  1. a reference axis, usually vertical, of a graph or two- or three-dimensional Cartesian coordinate system along which the y- 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


y-axis

/ ăk′sĭs /

  1. The vertical 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 y-axis1

First recorded in 1925–30
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