gigagram

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noun

An SI unit of mass equal to 10⁹ grams. Symbol: Gg

“Meronyms: picogram < nanogram < microgram < milligram < gram < kilogram < megagram”

Similar
kilotonne
OriginEnglish gram ← Ancient Greek γίγας (gígas) →
Scrabble 13
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Meanings

noungigagram (plural gigagrams)

plural gigagrams · alternative UK gigagramme

  1. metrologyAn SI unit of mass equal to 10⁹ grams. Symbol: Gg

    Meronyms: picogram < nanogram < microgram < milligram < gram < kilogram < megagram

    Synonyms: kilotonne

Synonyms & antonyms

nounAn SI unit of mass equal to 10⁹ grams. Symbol: Gg

Similar
kilotonne

Origin

  1. Ancient GreekΓίγας (Gígas)
  2. Ancient Greekγίγας (gígas)
  3. Englishgiga-
  4. Englishgram
  5. Englishgigagram

From giga- + gram.

Full word history & related roots →
Cite this entry
APA

gigagram. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/gigagram

MLA

“gigagram.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/gigagram. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “gigagram,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/gigagram.

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