Lavage

n. rinsing, washing; irrigation, cleansing (Medicine); cleansing of the stomach (Medicine)

In medicine, "lavage" is a general term referring to cleaning or rinsing. Specific types include:Antiseptic lavageBronchoalveolar lavageGastric lavagePeritoneal lavageArthroscopic lavageDuctal lavageEar lavage
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n. lavement, washing, scrubbing

Washing out. Gastric lavage is washing out the stomach, for example, to remove drugs or poisons.

Noun
1. washing out a hollow organ (especially the stomach) by flushing with water
(hypernym) irrigation
(hyponym) gastric lavage
(derivation) wash, lave