lavage
(lah-vahzh´)
irrigation or washing out of an organ or cavity, as of the stomach or intestine.
to wash out, or irrigate.
bronchoalveolar lavage
a technique by which cells and fluid from bronchioles and lung alveoli are removed for diagnosis of disease or evaluation
of treatment; a bronchoscope is wedged into a bronchus and sterile saline is pumped in and then removed along with the fluid
and cells to be analyzed.

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