Definition of lavage noun from the Oxford Advanced Learner's Dictionary

 

lavage

 noun
noun
BrE BrE//ˈlævɪdʒ//
 
; NAmE NAmE//ˈlævɪdʒ//
 
; BrE BrE//læˈvɑːʒ//
 
; NAmE NAmE//læˈvɑːʒ//
 
(medical)
 
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the process of washing a space inside the body such as the stomach or colon Word Origin late 18th cent. (in the general sense ‘washing, a wash’): from French, from laver ‘to wash’.
See the Oxford Advanced American Dictionary entry: lavage