# Z-axis meaning

Frequency:

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.

One of three axes in a three-dimensional Cartesian coordinate system.

noun

In a three-dimensional Cartesian coordinate system, the axis that is perpendicular to the x-axis and the y-axis and that is used to measure or plot the values of

*z.*noun

The third dimension in a graphics image. The width is the x-axis and the height is the y-axis. See x-y matrix.

One of the three axes of a three-dimensional Cartesian coordinate system.

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