<p><strong>Noun</strong></p><ul><li>something that is added, as one substance to another, to alter or improve the general quality or to counteract undesirable properties</li><li>a substance added directly to food during processing, as for preservation, coloring, or stabilization</li><li>something that becomes part of food or affects it as a result of packaging or processing</li></ul><p><strong>Adjective</strong></p><ul><li>characterized or produced by addition</li><li>cumulative</li><li>having the property that the function of the union or sum of two quantities is equal to the sum of the functional values of each quantity</li></ul>