Unit of energy equivalent to 1 million joules. (J). One Megajoule is equivalent to 0.2778 kWh.
a measure of the amount of heat energy that town gas produces
a million joules -- a unit of energy Neal Singer, a Sandia spokesman, described the effort as "an experimental machine that could possibly -- if enlarged -- produce usable electrical power through nuclear fusion
One million Joules.
1 million joules (sometimes MMJ).