y axis
/ˈwaɪˌæksɪs/
noun
- The vertical line on a graph or coordinate system, usually used to measure or show the value of one variable.
- On the graph, the y-axis shows the temperature in degrees Celsius.
- Plot the height of the plant on the y-axis and the number of days on the x-axis.
- The teacher asked us to label the y-axis with the word 'Distance'.