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petajoule

noun

An SI unit of energy equal to 10¹⁵ joules. Symbol: PJ

Scrabble 18

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Meanings

nounpetajoule (plural petajoules)

plural petajoules

metrologyAn SI unit of energy equal to 10¹⁵ joules. Symbol: PJ

Origin

From peta- + joule.

Full word history & related roots →

Translations

Czech petajoule

petajoule1015 joules

Rhymes & wordplay

Rhymes with petajoule

school rule cool pool fuel jewel bool cruel stool Poole mule emule spool Kabul Thule drool yule tulle Ewell joule buhl shul refuel uncool

Cite this entry

APA

petajoule. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/petajoule

MLA

“petajoule.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/petajoule. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “petajoule,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/petajoule.

Source: petajoule on Wiktionary, CC BY-SA 4.0.