Hall-Héroult process

proper noun

A major industrial process for smelting aluminium, by dissolving alumina in molten cryolite and then performing electrolysis.

Meanings

proper nounthe Hall-Héroult process
  1. A major industrial process for smelting aluminium, by dissolving alumina in molten cryolite and then performing electrolysis.

Origin

Named after the American chemist Charles Martin Hall and the Frenchman Paul Héroult, who invented it independently in 1886.

Full word history & related roots →
Cite this entry
APA

Hall-Héroult process. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Hall-H%C3%A9roult%20process

MLA

“Hall-Héroult process.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Hall-H%C3%A9roult%20process. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Hall-Héroult process,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Hall-H%C3%A9roult%20process.

Source: Hall-Héroult process on Wiktionary, CC BY-SA 4.0.