millibarn

M3I1L1L1I1B3A1R1N1

noun

A unit of cross section equal to one thousandth of a barn; Abbreviation: mb

OriginEnglish barn ← French milli- ← Latin mīlle →
Scrabble 13
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Meanings

nounmillibarn (plural millibarns)

plural millibarns

  1. natural sciencesA unit of cross section equal to one thousandth of a barn; Abbreviation: mb

Origin

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sm̥-
  3. Proto-Indo-European*smih₂
  4. Proto-Indo-European*ǵʰes-
  5. Proto-Indo-European*ǵʰéslom
  6. Proto-Indo-European*ǵʰéslih₂
  7. Proto-Indo-European*smih₂ǵʰéslih₂
  8. Proto-Italic*smīɣeslī
  9. Latinmīlle
  10. Frenchmilli-
  11. Englishmilli-
  12. Englishbarn
  13. Englishmillibarn

From milli- + barn.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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