oleum
noun
ole·um
| \ ˈō-lē-əm
\
\
Definition of oleum
2
plural oleums
: a heavy oily strongly corrosive solution of sulfur trioxide in anhydrous sulfuric acid
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More Definitions for oleum
oleum
noun
ole·um
| \ ˈō-lē-əm
\
\
plural olea\ -lē-ə
\
\