from The Century Dictionary.

  • noun A valve capable of very fine adjustment.
  • noun A valve having a stem with a sharp conical point which bears on a conical seat. The stem is made to travel by a very fine screw, and a large turn of the handle is required to make a small change in the opening through the valve.
  • noun A similar valve controlling an opening of very small size.


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.