An archaic or variant spelling of aluminum; the metallic element with atomic number 13.
An older English spelling from the late 1700s-1800s, derived from alumen (Latin). Before 'aluminum' became standardized, various spellings like 'aluminium' and 'alumium' competed.
Aluminum has a wild naming history—it was called 'alumium,' then 'aluminum,' then 'aluminium,' with different countries still preferring different spellings today (Americans say aluminum, British say aluminium).
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