Microwave-oven-definition, definition of microwave oven : an oven in which food is cooked by the heat produced by the absorption of microwave energy by water molecules in the food examples of microwave oven in a sentence. Microwave oven definition, an electrically operated oven using high-frequency electromagnetic waves that penetrate food, causing its molecules to vibrate and generating heat within the food to cook it in a very short time. see more., a microwave oven(commonly referred to as a microwave) is an electric oventhat heats and cooks food by exposing it to electromagnetic radiationin the microwavefrequencyrange. this induces polar moleculesin the food to rotate and produce thermal energyin a process known as dielectric heating..
An oven in which food is cooked, warmed, or thawed by the heat produced as microwaves cause water molecules in the foodstuff to vibrate., microwave oven, also called electronic oven, appliance that cooks food by means of high-frequency electromagnetic waves called microwaves. a microwave oven is a relatively small, boxlike oven that raises the temperature of food by subjecting it to a high-frequency electromagnetic field.. An electrically operated oven using high-frequency electromagnetic waves that penetrate food, causing its molecules to vibrate and generating heat within the food to cook it in a very short time most material © 2005, 1997, 1991 by penguin random house llc. modified entries © 2019 by penguin random house llc and harpercollins publishers ltd, a microwave oven (commonly referred to as a microwave) is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. this induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating..
1. countable noun a microwave or a microwave oven is an oven which cooks food very quickly by electromagnetic radiation rather than by heat. 2. verb to microwave food or drink means to cook or heat it in a microwave oven., scientifically speaking, regular microwaves emit waves that bounce around until they come in contact with food, causing water molecules to excite and generate heat, which then cooks the food. in contrast, convection oven technology uses a fan to force air movement and heat up the full interior of the microwave to cook food from the inside out.