1. a kitchen appliance used for cooking food, typically having an oven and burners on top
Usage: chiefly British
2. a container or device designed for cooking a particular type of food

Examples

• She turned on the gas cooker to prepare dinner.
• The new electric cooker has four burners and a large oven.
• We bought a pressure cooker to make meals faster.
• The rice cooker automatically switches off when done.
• Their old cooker finally broke down after ten years.
• The slow cooker simmered the stew all day.