Definition of bloodletter in English:

bloodletter

noun

historical
  • 1A person who extracts blood from a person or animal for therapeutic purposes, especially a phlebotomist.

  • 2A person who sheds the blood of another; a ruthless murderer.

Origin

Old English; earliest use found in Antwerp Glossary. From blood + let + -er, after to let blood.

Pronunciation

bloodletter

/ˈblʌdˌlɛtə/