Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

oleum

play
noun ole·um \ˈō-lē-əm\

Definition of oleum

  1. 1 plural olea play \-lē-ə\ :  oil

  2. 2 plural oleums :  a heavy oily strongly corrosive solution of sulfur trioxide in anhydrous sulfuric acid



Origin and Etymology of oleum

Latin, olive oil — more at oil


First Known Use: circa 1823


Medical Dictionary

oleum

play
noun ole·um \ˈō-lē-əm\

Medical Definition of oleum

plural

olea

\-lē-ə\play
  1. :  oil 1




Seen and Heard

What made you want to look up oleum? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a secret group of plotters

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

dog-eating-apple

Which is a synonym of asperse?

beat placate defame divulge
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ