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barn2

Pronunciation: /bɑːn/
(abbreviation: b)
Translate barn | into French | into German | into Italian | into Spanish
Definition of barn

noun

Physics
  • a unit of area, 10−28 square metres, used especially in particle physics.

Origin:

1940s: apparently from the phrase as big as a barn door

barn in other Oxford dictionaries

Definition of barn in the US English dictionary

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