attogram

A1T1T1O1G2R1A1M3

noun

An SI unit of mass equal to 10⁻¹⁸ grams. Symbol: ag

Similar
zeptokilogramag
Scrabble 11
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounattogram (plural attograms)

plural attograms · alternative UK attogramme

  1. metrologyAn SI unit of mass equal to 10⁻¹⁸ grams. Symbol: ag

    Synonyms: zeptokilogram, ag

Synonyms & antonyms

nounAn SI unit of mass equal to 10⁻¹⁸ grams. Symbol: ag

Similar
zeptokilogramag

Origin

From atto- + gram.

Full word history & related roots →

Translations

French attogramme
  • attogramme10-18 grams
Malay atogram
  • atogram10-18 grams
Portuguese atograma
  • atograma10-18 grams
Swedish attogram
  • attogram10-18 grams
Cite this entry
APA

attogram. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/attogram

MLA

“attogram.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/attogram. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “attogram,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/attogram.

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