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Definition of Femtobarn
1. Noun. (physics) A unit of area equal to a billionth of a millionth (10-15) of a barn ¹
¹ Source: wiktionary.com
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1. Noun. (physics) A unit of area equal to a billionth of a millionth (10-15) of a barn ¹
¹ Source: wiktionary.com