Nobili's rings

noun

Coloured rings formed upon a metal plate by the electrolytic disposition of copper, lead peroxide, etc. They may be produced by touching with a pointed zinc rod a silver plate on which is a solution of copper sulphate.

Meanings

nounNobili's rings pl (plural only)
  1. pluralplural onlyColoured rings formed upon a metal plate by the electrolytic disposition of copper, lead peroxide, etc. They may be produced by touching with a pointed zinc rod a silver plate on which is a solution of copper sulphate.

Origin

After Leopoldo Nobili, the Italian physicist who first described them in 1826.

Full word history & related roots →
Cite this entry
APA

Nobili's rings. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Nobili's%20rings

MLA

“Nobili's rings.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Nobili's%20rings. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Nobili's rings,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Nobili's%20rings.

Source: Nobili's rings on Wiktionary, CC BY-SA 4.0.