1. a container, oven, furnace, or apparatus for roasting something: "my mother used to cook poultry in an oval-lidded roaster"
▪ a person or company that processes coffee beans: "he set up his own business as a tea dealer and coffee roaster"
▪ a foodstuff that is particularly suitable for roasting, especially a chicken:"if you are using a roaster instead of a boiler, 45 to 50 minutes will cook it"