The term "roaster-oven" refers to a cooking device that combines features of both a roasting pan and an oven. This versatile appliance is often used to cook large cuts of meat and poultry, as well as vegetables, casseroles, and baked goods. There are several synonyms for the word "roaster-oven," including roasting oven, roasting pan with lid, electric roaster, and electric oven with cover. Other related terms include slow cooker, pressure cooker, and Dutch oven, which are all designed to cook food slowly and evenly over a long period of time. No matter what you call it, a roaster-oven is a must-have tool for any serious home cook.