ex·​pel·​ler | \ ikˈspelə(r), ek-\
plural expellers

Definition of expeller

: one that expels someone or something They point to the abject failure to reform immigration policy and say that … America has become what it never has been—an expeller of huddled masses.— Gregg Krupa, Detroit News, 4 Dec. 2008 especially : a screw press for expressing vegetable oil from soybeans or other seeds In industrial practice, after the oil is removed using mechanical means by an expeller, you have a mash that's left over. — Jimmy Lovaas, Seattle Times, 10 June 2013 often used in combination expeller-pressed canola oil

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Comments on expeller

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


food or victuals

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!