#lavage  washing out a hollow organ (especially the stomach) by flushing with water
  supertype:  irrigation  (medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution
  subtype:  gastric_lavage__gastriclavage  washing out the stomach with sterile water or a salt-water solution; removes blood or poisons; "when the doctor ordered a gastric lavage the hospital pumped out my stomach"

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