mains hum

noun

A sound associated with alternating current which has a frequency a multiple of that of the mains electricity.

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Meanings

nounmains hum (uncountable)
  1. uncountableA sound associated with alternating current which has a frequency a multiple of that of the mains electricity.

Translations

Danish netbrum
  • netbrumsound from mains electricity
Spanish zumbido eléctrico, zumbido de líneas eléctricas
  • zumbido eléctricosound from mains electricity
  • zumbido de líneas eléctricassound from mains electricity
Cite this entry
APA

mains hum. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/mains%20hum

MLA

“mains hum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mains%20hum. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “mains hum,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/mains%20hum.

Source: mains hum on Wiktionary, CC BY-SA 4.0.