z-axis

[zee-ak-sis]

noun, plural z-ax·es

[zee-ak-seez] /ˈziˌæk siz/. Mathematics.

(in a three-dimensional Cartesian coordinate system) the axis along which values of z are measured and at which both x and y equal zero.

Origin of z-axis

First recorded in 1945–50

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for z-axis

z-axis

noun

a reference axis of a three-dimensional Cartesian coordinate system along which the z- 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

z-axis in Science

z-axis

[zē′ăk′sĭs]

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