Word.ws English Dictionary

femtobarn

femtobarn noun: a unit of area equal to a billionth of a millionth (10⁻¹⁵) of a barn.

Noun

femtobarn (plural femtobarns)

  1. A unit of area equal to a billionth of a millionth (10⁻¹⁵) of a barn

Forms of femtobarn

pluralfemtobarns

Origin of femtobarn

From femto- + barn.

Questions about femtobarn

What does femtobarn mean?
Femtobarn means a unit of area equal to a billionth of a millionth (10⁻¹⁵) of a barn.
What part of speech is femtobarn?
Femtobarn is a noun.
What is the plural of femtobarn?
The plural of femtobarn is femtobarns.

Words near femtobarn in the dictionary

  1. femtech
  2. femto-
  3. femto-photography
  4. femtoampere
  5. femtoamperes
  6. femtobarn
  7. femtobarns
  8. femtobecquerel
  9. femtobecquerels
  10. femtobel
  11. femtobels

Source and license

Adapted from Wiktionary: femtobarn (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “femtobarn.” Word.ws, https://word.ws/femtobarn. Based on Wiktionary, CC BY-SA 4.0.