Definition of 'leech'

Noun

1. carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end
      Synonyms: bloodsucker hirudinean
2. a follower who hangs around a host (without benefit to the host) in hope of gain or advantage
      Synonyms: parasite sponge sponger

Verb

1. draw blood; "In the old days, doctors routinely bled patients as part of the treatment"
      Synonyms: bleed phlebotomize phlebotomise

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