One that takes in everything available, as with the mind.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "omnivore" in a sentence
"At the press of a button, drivers can choose between normal, sport and eco, which you might characterize as omnivore, carnivore and vegan, respectively."
"But she was a literary "omnivore," and on this day her eye fell on Alvin M."
"I am a non-veggie married to a veggie...... lunch-meat sliced turkey or roast beef or whatnot has been one of my solutions of late for easy meat, but then, I'm the kind of omnivore who doesn't really like meat that much, but needs a high protein diet and just finds it easier."