• (n.) The act of depriving of odor, especially of offensive odors resulting from impurities.
(from the article `fat and oil processing`) Odourless and tasteless fats first came into high demand as ingredients for the manufacture of margarine, a product designed to duplicate the flavour ...
De·o`dor·i·za'tion noun The act of depriving of odor, especially of offensive odors resulting from impurities. 
deodorization The removal of a (bad) odor or smell.