Z Axis



Z-axis (plural z-axes)
 * 1) Geometry: The axis on a graph that is usually drawn as if vertical and usually shows the range of values of a variable dependent on two other variables or the third independent variable.
 * 2) Navigation: The axis that is perpendicular to the plane of the X and Y axes. Coordinates are written as 0,0,0; this represents the X axis, Y axis and Z axis respectively. (See Galactic Z axis)