Valid in these dictionaries
Meaning of ‘alum’
4 definitions found.
a double sulphate of aluminum and potassium that is used as an astringent (among other things)
a person who has received a degree from a school (high school or college or university)
Synonyms: alumnus
a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
Synonyms: potassium alum
a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
Synonyms: ammonia alum ammonium alum
Source: WordNet 3.0 Copyright 2006 by Princeton University
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