<p><strong>Adjective</strong></p><ul><li>serving to fix; making fixed or permanent.</li></ul><p><strong>Noun</strong></p><ul><li>a fixative substance, as a gummy liquid sprayed on a drawing to prevent blurring, or a solution for killing, hardening, and preserving material for microscopic study.</li><li>Also called fixer.</li><li>Photography. a chemical substance, as sodium thiosulfate, used to promote fixation.</li><li>a substance that retards evaporation, as in the manufacture of perfume.</li></ul>