Definition of "bleeder"

bleeder

/ˈblidɚ/

noun
plural bleeders
1. A person who is easily made to bleed, or who bleeds in unusually large amounts, particularly a hemophiliac.
  Quotations
  And then finally to pass on to the rising generation there were Sean's two little girls Rose and Cerise, aged five and four respectively, and these innocent little girlies were bleeders like their papa and mama […]
  1953, Samuel Beckett, Watt, 1st American edition, New York, N.Y.: Grove Press, published 1959
2. (surgery) A blood vessel that requires cauterization etc. to stop it from bleeding during surgery.
  Quotations
  Ligate or cauterize small subcutaneous bleeders and identify the linea alba.
  2013, Theresa Welch Fossum, Small Animal Surgery Textbook
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. (UK, Ireland, Australia, New Zealand, Commonwealth, slang, derogatory) A troublesome fellow or thing; a blighter.
  Quotations
  His brother caught three hundred cran when the seas were lavish, / Threw the bleeders back in the sea and went upon the parish.
  1938, Louis MacNeice, Bagpipe Music
  ‘Well, what did the old bleeder say?’ said Opus Fluke.
  1950, Mervyn Peake, chapter 36, in Gormenghast, London: Eyre & Spottiswoode
6. (baseball) Synonym of scratch hit
7. (LGBT) A person who menstruates (used in the context of transgender inclusivity).
  Quotations
  Vostral (2008) sees menstrual technology as focused on allowing women to “pass” as non-bleeders, speaking to the sense of the female body as dysfunctional, problematic, and “out of control.”
  2014, Michael O'Loughlin, Marilyn Charles, Fragments of Trauma and the Social Production of Suffering, page 154