Jisho

×
Wikipedia definition
1. AlumAlum is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate with the formula KAl2·12H2O. The wider class of compounds known as alums have the related empirical formula, AB(SO4)2·12H2O.
Read “Alum” on English Wikipedia
Read “ミョウバン” on Japanese Wikipedia
Read “Alum” on DBpedia

Discussions

to talk about this word.