expeller

noun

ex·​pel·​ler

ikˈspelə(r),

ek-

plural expellers

: 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

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