x-axis

noun

x-ax·​is ˈeks-ˌak-səs 

1

: the axis in a plane Cartesian coordinate system parallel to which abscissas are measured

2

: one of the three axes in a three-dimensional rectangular coordinate system

Examples of x-axis in a Sentence

Recent Examples on the Web

Now imagine that this Cantor set lives on the x-axis, and at each point on this set is a peak representing a frequency. — Shalma Wegsman, Quanta Magazine, 12 Aug. 2026

In place of drums is a constant floor of undulating synth bass, which sometimes twists itself into the treble range but mostly functions as the x-axis to the percussion’s y in the vast lattice structure that supports this music. — Daniel Bromfield, Pitchfork, 9 Apr. 2026

Y-axis ranges from $0 to $10,000; x-axis spans 2019 to 2025. — Luke Fountain, CNBC, 31 Oct. 2025

Soon, the application of some instrument oil, silicone grease, and Kimwipes had the x-axis and pen lifter working again. — Stephen Cass, IEEE Spectrum, 27 June 2025

Word History

First Known Use

1886, in the meaning defined at sense 1

Rhymes for x-axis

• axis
• praxis
• taxus
• anaphylaxis
• chemoprophylaxis
• chemotaxis
• epistaxis
• prophylaxis

Kids Definition

x-axis

noun

x-ax·​is

ˈek-ˌsak-səs

: the horizontal axis in a plane coordinate system along which or parallel to which abscissas are measured compare y-axis