bleeder

/ˈblidər/
noun
  1. A person who bleeds easily, especially someone with a medical condition like hemophilia.
    • Bleeders must avoid contact sports.
    • He is a bleeder, so even a small cut can be serious.
    • The doctor warned that the patient was a bleeder and needed special care.
  2. A small hole or valve used to release liquid or gas from a system.
    • Open the bleeder to let the air out of the pipe.
    • He turned the bleeder screw to release the pressure.
    • The radiator has a bleeder at the top.
What does "bleeder" mean? | whatsthatwordmean | whatsthatwordmean