zettagram

Z10E1T1T1A1G2R1A1M3

noun

An SI unit of mass equal to 10²¹ grams. Symbol: Zg

OriginEnglish gram ← Ancient Greek ἑπτᾰ́ (heptắ) ← Proto-Hellenic *heptə́ →
Scrabble 21
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Meanings

nounzettagram (plural zettagrams)

plural zettagrams · alternative UK zettagramme

  1. metrologyAn SI unit of mass equal to 10²¹ grams. Symbol: Zg

Origin

  1. Proto-Afroasiatic*sṗɣ?
  2. Proto-Semitic*šabʕ-bor.?
  3. Proto-Indo-European*septḿ̥
  4. Proto-Italic*septəm
  5. Latinseptem
  6. Proto-Indo-European*septḿ̥
  7. Proto-Hellenic*heptə́
  8. Ancient Greekἑπτᾰ́ (heptắ)
  9. Englishzetta-
  10. Englishgram
  11. Englishzettagram

From zetta- + gram.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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