giga-joule

noun

One thousand million ( 10⁹ ) joules. Symbol: GJ.

OriginEnglish joule ← Ancient Greek γίγας (gígas) →
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Meanings

noungiga-joule (plural giga-joules)

plural giga-joules · alternative gigajoule

  1. One thousand million ( 10⁹ ) joules. Symbol: GJ.

Origin

  1. Ancient GreekΓίγας (Gígas)
  2. Ancient Greekγίγας (gígas)
  3. Englishgiga-
  4. Englishjoule
  5. Englishgiga-joule

From giga- + joule.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: giga-joule on Wiktionary, CC BY-SA 4.0.