a combination convection oven and microwave oven, which has standard radiant heat sources and recirculating fan found in convection ovens and microwave emitters found in microwave ovens

(astronomy) Faint thermal radiation that pervades all space and is thought to be the remnants of the big bang, produced during the epoch of recombination.

(physics, dynamics) A theoretical type of drive that does not conform to Newton's Laws of Motion, violating the conservation of momentum, using a resonant cavity where microwaves are beamed.

plural of microwaveguide

A microwave waveguide

(informal) Cooking with a microwave oven.