fleam

noun3

1. •
   A sharp instrument used to open a vein, to lance gums, or the like.

   • A bloodstick - a piece of hard wood loaded at one end with lead — is used to strike the fleam into the vein — 1831
2. •
   (dialect, UK) The watercourse or runoff from a mill; millstream
3. •
   (dialect, UK) A large trench or gully cut into a meadow in order to drain it