zero crossing

noun

A point where a function's graph intersects the x-axis, meaning the function's output (or sign) changes from positive to negative, or vice-versa, passing through zero; used in signal processing, electronics, and audio analysis for tasks like frequency measurement, noise reduction, and differentiating sound types, as it marks significant transitions in waveforms and data.

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Meanings

nounzero crossing (plural zero crossings)

plural zero crossings

  1. mathematicsA point where a function's graph intersects the x-axis, meaning the function's output (or sign) changes from positive to negative, or vice-versa, passing through zero; used in signal processing, electronics, and audio analysis for tasks like frequency measurement, noise reduction, and differentiating sound types, as it marks significant transitions in waveforms and data.
Cite this entry
APA

zero crossing. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/zero%20crossing

MLA

“zero crossing.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/zero%20crossing. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “zero crossing,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/zero%20crossing.

Source: zero crossing on Wiktionary, CC BY-SA 4.0.