petajoule
Noun
Meaning
petajoule (plural petajoules)
(metrology) An SI unit of energy equal to 10 joules. Symbol: PJ
Synonyms
Examples
Petajoule The petajoule (PJ) is equal to one quadrillion (10 15 ) joules. 210 PJ is equivalent to about 50 megatons of TNT.