Wiktionary
multimegawatt
n. More than a megawatt of power.
Usage examples of "multimegawatt".
It was a nuclear power generator, capable of providing the electricity to run a multimegawatt laser.
The plasma generator doesn't need to be a multimegawatt monster-all we need is a large pulse for a hundredth of a second to excite the neodymium lasing amplifier chips.