D defs.my
Entry 1 sense Webster, 1913

Barker's mill

· Bark·er's mill · IPA
01 A machine, invented in the 17th century, worked by a form of reaction wheel. The water flows into a vertical tube and gushes from apertures…
  1. 1.
    A machine, invented in the 17th century, worked by a form of reaction wheel. The water flows into a vertical tube and gushes from apertures in hollow horizontal arms, causing the machine to revolve on its axis.