noun
pl. z′-ax·es·z-axis


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z-axis

noun
pl. z-ax·es,
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z-axis - Computer Definition

The third axis, usually representing depth, of a three-dimensional grid, chart, or graph in a Cartesian coordinate system. The z-axis is perpendicular to both the x-axis and y-axis and is used to plot the value of z, the third unknown in mathematics. See also Cartesian coordinates, x-axis, y-axis, and z.
Used by arrangement with John Wiley & Sons, Inc.
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The third dimension in a graphics image. The width is the x-axis and the height is the y-axis. See x-y matrix.
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