oiled

Oiled is the past participle of oil and functions as an adjective meaning coated with oil or lubricated with it. It can describe surfaces, objects, or people that have been treated with oil for lubrication, protection, shine, or moisture. The term is used across several domains, from industry and food to cosmetics and maintenance.

In industry and mechanics, oil provides a lubricating film between moving parts, reducing friction, carrying away heat, and preventing wear. Oils differ in viscosity and additives for specific tasks, such as engine oil, hydraulic oil, and gear oil. Components described as "oiled" have typically undergone a lubrication step in assembly or service.

In cooking and food preparation, oil is used as a cooking medium or dressing. A pan may be "oiled" to prevent sticking, and foods can be brushed or tossed with oil for flavor and texture. Oils vary in composition and smoke point, influencing their suitability for frying, sautéing, or finishing dishes.

Oil is also used to treat or protect materials such as wood, leather, or metal surfaces, and it is employed in cosmetics to moisturize skin and hair. Because oils can be flammable or cause allergic reactions, handling and disposal require appropriate care, and environmental spills must be cleaned up promptly.