<p><strong>Noun:</strong></p><ul><li>A person or thing that tones.</li><li>A highly concentrated organic pigment containing little or no inert matter.</li><li>A powder, either dry or dispersed in an organic liquid, used in xerography to produce the final image (also called chemical toner).</li><li>A chemical solution used to change the color of and, in some cases, help preserve black-and-white prints and motion-picture film by altering or replacing the silver image.</li><li>A worker for a paint manufacturer who tests the color and quality of paint.</li><li>A cosmetic preparation, usually a liquid, used to restore firmness to the skin.</li></ul>