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olein
oleo (1)
oleo (2)
oleo-
oleo oil
oleograph
oleomargarine
oleoresin
oleum
olfaction
olfactometer
olfactory
olfactory bulb
olibanum
oligarch
oligarchy
oligo-
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oleum
o·le·um [ ṓlee əm ]


noun 
Definition:
 
sulfur trioxide solution: a solution of sulfur trioxide in sulfuric acid
[Early 20th century. < Latin, "oil" (see oil)]
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