z-axis Hear it!

z-axis definition

z·-axis (zē′ak′sis)

noun pl. z-axes z′·-ax′es (-sēz)

Geom. 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

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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