Microwaves are a form of electromagnetic radiation with wavelengths between 1 millimeter and 1 meter. In everyday language, microwaves refer to the kitchen appliance often used to quickly heat up or cook food. However, there are other words that can be used as synonyms for microwaves, such as radar, radio waves, and microwave radiation. These words all refer to the same type of electromagnetic radiation, but are used in different contexts. For example, radar is used to detect and locate objects, while radio waves are used for communication. Microwave radiation is also used in medical imaging equipment, such as MRI and CT scanners.