cocoa butter co·coa·but·ter uncommon noun 1. a yellow-white fat from cocoa beans Synonymscocoa butter 2. the vegetable fat from the cacao that is extracted from chocolate liquor; the basis for white chocolate Synonymscocoa butter Related words Broader terms chocolatefat Parts white chocolate WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.