microwave -- (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)
microwave, microwave oven -- (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)
Overview of verb microwave
The verb microwave has 1 sense
microwave, micro-cook, zap, nuke -- (cook or heat in a microwave oven; "You can microwave the leftovers")