Definitions

from The Century Dictionary and Cyclopedia

  • n. A valve capable of very fine adjustment.
  • n. 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.
  • n. A similar valve controlling an opening of very small size.

Etymologies

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