z-axis

1 of 2

noun (1)

z-ax·​is ˈzē-ˌak-səs How to pronounce z-axis (audio)
Canadian, British, and Australian ˈzed-
: one of the axes in a three-dimensional rectangular coordinate system

zax

2 of 2

noun (2)

ˈzaks
plural -es
: a tool for trimming and puncturing roofing slates

Word History

Etymology

Noun (2)

English dialect, alteration of sax entry 1

First Known Use

Noun (1)

1929, in the meaning defined above

Time Traveler
The first known use of z-axis was in 1929

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Cite this Entry

“Z-axis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/z-axis. Accessed 14 Jun. 2026.

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