"Barn (unit)" . "b" . "attobarns" . "pb" . . . "picobarns" . "Barn (unit)#Commonly used prefixed versions" . "mb" . "nb" . "Picobarn" . "Barn (unit)#Inverse femtobarn" . "Barn" . . "barn (unit)" . "femtobarn" . . "fb" . "nanobarns" . "femtobarns" . . "mbarns" . . "millibarn" . "picobarn" . . "zeptobarn" . "millibarns" . "Barn (unit)" . "barns" . "ab" . . "pb^\u22121" . . "barn" . .