lavage

noun

1. a washing.
2. Medicine/Medical.
   1. cleansing by irrigation or the like.
   2. the washing out of the stomach.

noun

1. med the washing out of a hollow organ by flushing with water

n.“a washing,” 1895, from French lavage, from laver “to wash” (see lave). n.

1. A washing, especially of a hollow organ such as the stomach or lower bowel, with repeated injections of water.