y-axis
y–ax·is
noun \ˈwī-ˌak-səs\Definition of Y-AXIS
1
: the axis of a plane Cartesian coordinate system parallel to which ordinates are measured
2
: one of the three axes in a three-dimensional rectangular coordinate system
See First Known Use of Y-AXIS
1875
Browse
Seen & Heard 
What made you want to look up y-axis? Please tell us where you read or heard it (including the quote, if possible).
