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megajoule

American  
[meg-uh-joul, -jool] / ˈmɛg əˌdʒaʊl, -ˌdʒul /

noun

Physics.
  1. a unit of work or energy, equal to one million joules.


Etymology

Origin of megajoule

mega- + joule

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In less than four seconds—according to butterflies let loose in my stomach—the Bentley swept past 60 mph, casually acquiring a kinetic energy of nearly one megajoule, roughly equivalent to a stick of dynamite.

From The Wall Street Journal Jul. 18, 2026

However, that 2.05 megajoule input did not represent all the energy that went into the ignition process — just the amount that inefficient lasers managed to get to the hydrogen pellet.

From Washington Post Dec. 14, 2022

In fact, it takes between 300 and 400 megajoules to produce a 2.1 megajoule laser beam.

From Slate Dec. 14, 2022

It took far more energy in total — on the scale of 300 megajoules — to produce that 3.15 megajoule result.

From Washington Post Dec. 14, 2022

This is an image of the record-breaking 33 megajoule test of the railgun by the U.S.

From Scientific American Jan. 31, 2012

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