The word “crinoline” refers to a stiff or structured fabric, often made from horsehair or cotton, that is used to give volume and shape to garments. It is most commonly associated with women’s skirts and dresses from the 19th century, particularly those with a bell-shaped silhouette. Additionally, “crinoline” can also refer to a type of underskirt or petticoat made from this fabric that is worn to support and enhance the shape of an outer garment.