WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction
Word Usage
"Apparently there's some kind of oxidization going on, and the result is that after you eat something made with these pine nuts, you experience a bitter taste in your mouth that can last for a few days up to three weeks."