microwave

A microwave refers to both a type of electromagnetic wave and a common kitchen appliance. Here are the two meanings:

1. Microwave (Electromagnetic Wave)

• Definition: Microwaves are a type of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter, and frequencies between 300 MHz (0.3 GHz) and 300 GHz.
• Uses: Microwaves are used in various applications such as communication (e.g., satellite and mobile phone signals), radar systems, and in cooking food.

2. Microwave Oven (Kitchen Appliance)

• Definition: A microwave oven is a kitchen appliance that uses microwave radiation to heat and cook food. The microwaves cause water molecules in the food to vibrate, producing heat that cooks the food.
• Common Uses: Reheating leftovers, defrosting frozen food, and quickly cooking or steaming food items.