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Meaning of infernal stone | Babel Free

Noun CEFR B2

Definitions

lapis infernalis, lunar caustic
obsolete
caustic potash
obsolete

CEFR level

B2

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

See also

infernalism infernalist infernality Infernally infernalship Infernet