A stable, colloidal suspension of two or more immiscible liquids. Fine, microscopic droplets of one liquid are evenly dispersed within the second liquid. A third material, called an emulsifier, coats the droplets to keep them from coalescing and settling out. Examples of natural emulsions are milk and egg yolk. Examples of synthetic emulsions are many oil-in-water paint formulations, leather dressings, margarine and aqueous polymer preparations. Synonyms: Emulsions. Museum of Fine Arts, Boston (2000). [J. Cassar, R. de Angelis]