Cullen stone

短语

词形变化

Cullen stones 复数 Cullen stones

释义与例句

n.
  1. 1.

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

    可数 历史 不可数
  2. 2.

    A millstone made from this substance.

    可数 历史 不可数

词源

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

来源：wiktionary