Cullen stone

名词 n.

英文释义

名词 n.
  1. A form of black lava quarried in the Rhine Valley and used for millstones. countable,historical,uncountable
  2. A millstone made from this substance. countable,historical,uncountable

词形变化

Cullen stones plural

词源

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