An Erlenmeyer flask is a type of laboratory glassware characterized by its conical shape and flat bottom. It features a narrow neck that allows for easy mixing and swirling of liquids without the risk of spillage. This design makes it ideal for experiments that require heating or stirring. Typically made of glass or plastic, the Erlenmeyer flask is used in various scientific fields, including chemistry and biology. It often comes in different sizes, allowing scientists to measure and mix varying volumes of liquids accurately. The flask can also be fitted with a stopper or a rubber seal for storage purposes.