Definition of "Microwave" :

noun: kitchen appliance that cooks food by passing an electromagnetic wave through it; heat results from the absorption of energy by the water molecules in the food

noun: a short electromagnetic wave (longer than infrared but shorter than radio waves); used for radar and microwave ovens and for transmitting telephone, facsimile, video and data

verb: cook or heat in a microwave oven

"You can microwave the leftovers."