Usually means: Unit of energy measurement, large.
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We found 5 dictionaries that define the word petajoule:

General (2 matching dictionaries)
  1. petajoule: Wiktionary
  2. Petajoule: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)
  1. Petajoule: Encyclopedia

Medicine (1 matching dictionary)
  1. Petajoule: Medical dictionary

Science (1 matching dictionary)
  1. How Many? A Dictionary of Units of Measurement (No longer online)

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Definitions from Wiktionary (petajoule)

▸ noun:  (metrology) An SI unit of energy equal to 10¹⁵ joules. Symbol: PJ

Similar:
megajoule, terajoule, zeptojoule, kilojoule, exajoule, attojoule, nanojoule, picojoule, zepto-joule, nano-joule, more...

Opposite:
femtojoule, attosecond, zeptosecond

▸ Words similar to petajoule

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Similar:
megajoule, terajoule, zeptojoule, kilojoule, exajoule, attojoule, nanojoule, picojoule, zepto-joule, nano-joule, more...

Opposite:
femtojoule, attosecond, zeptosecond



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