Cullen stone

noun

A form of black lava quarried in the Rhine Valley and used for millstones.

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Meanings

nounCullen stone (countable and uncountable, plural Cullen stones)

plural Cullen stones

  1. countablehistoricaluncountableA form of black lava quarried in the Rhine Valley and used for millstones.
  2. countablehistoricaluncountableA millstone made from this substance.

Origin

The first word is a form of Cologne, the German city.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: Cullen stone on Wiktionary, CC BY-SA 4.0.