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Meaning of lava millstone | Babel Free

Noun CEFR B2

Definitions

A hard, coarse basaltic millstone from the Rhine region.

countable, uncountable

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

lava millstones lava sledding lava tube lava tubes lava ware lava-lava