What is the definition of Roche alum? | Dictionary.net

ROCHE ALUM

\ɹˈɒt͡ʃ ˈaləm], \ɹˈɒt‍ʃ ˈaləm], \ɹ_ˈɒ_tʃ ˈa_l_ə_m]\

Definitions of ROCHE ALUM

2010 - New Age Dictionary Database
1913 - Webster's Revised Unabridged Dictionary

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A kind of alum occuring in small fragments; - so called from Rocca, in Syria, whence alum is said to have been obtained; - also called rock alum.

2010 - New Age Dictionary Database
By Oddity Software

A kind of alum occuring in small fragments; - so called from Rocca, in Syria, whence alum is said to have been obtained; - also called rock alum.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.

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