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alum slate

Noun CEFR B2

Definitions

A slate consisting mainly of clay, iron pyrites, and coaly matter, from which alum is obtained.

Equivalents

Svenskaalunskiffer

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

alum-basket alumane Alumbaugh alumbrado alumbrados Alumel

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