microwave

nouns

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
is a part of
the entire frequency range of electromagnetic waves
is a type of (narrower)
radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
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

verbs

cook or heat in a microwave oven
"You can microwave the leftovers"