A maternity dress is a type of clothing that is specifically designed to accommodate the changing body shape and size of a pregnant woman. These dresses are made with extra room in the bust, waist, and hips to allow for comfortable movement and growth during pregnancy. Maternity dresses come in various styles such as maxi, midi or knee-length, and can be found in different fabrics that provide comfort and breathability. They are an essential part of a pregnant woman's wardrobe, helping her to feel confident and comfortable throughout her pregnancy.