bleeder

1. A person who is easily made to bleed, or who bleeds in unusually large amounts, particularly a hemophiliac.

   Bluter

2. A blood vessel that requires cauterization etc. to stop it from bleeding during surgery.

3. Anything that saps a resource produced by something else.

4. A valve designed to release a small amount of excess pressure from a system.

5. (Commonwealth, Ireland, UK, derogatory, slang)A troublesome fellow or thing; a blighter.

6. Synonym of scratch hit.

7. A person who menstruates (used in the context of transgender inclusivity).

regular