Meanings
nounattobarn (plural attobarns)
plural attobarns
- natural sciencesA unit of surface area equal to 10⁻¹⁸ barns.
Origin
Cite this entry
APA
attobarn. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/attobarn
MLA
“attobarn.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/attobarn. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “attobarn,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/attobarn.
Source: attobarn on Wiktionary, CC BY-SA 4.0.