Backing line or backing – Line used to spool on a reel to raise the line level before applying a topshot of other line, normally braid. In fly fishing the…
Bail or Bail arm (bale) – A semicircular, metal arm on an fixed spool or spinning reel that picks up the line after a cast.
Bait holder hook – A hook with a slice or slices on the back of the shank to help retain a bait or plastic worm.