y-axis

noun

y-ax·​is ˈwī-ˌak-səs How to pronounce y-axis (audio)
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

Word History

First Known Use

1875, in the meaning defined at sense 1

Time Traveler
The first known use of y-axis was in 1875

Dictionary Entries Near y-axis

Cite this Entry

“Y-axis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/y-axis. Accessed 29 Jan. 2023.

Kids Definition

y-axis

noun
y-ax·​is
ˈwī-ˌak-səs
: the vertical axis in a plane coordinate system along which or parallel to which ordinates are measured compare x-axis
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