Home/megajoulemegajoule/meg-uh-joul, -jool/US // ˈmɛg əˌdʒaʊl, -ˌdʒul //兆焦耳,百万焦耳,百兆焦耳Definitionsn.名词 noun1 Physics.: a unit of work or energy, equal to one million joules. Level 5Browse all words →