"The creation of adhesions in the pleural cavity, typically by the introduction of an irritant substance, used especially in the treatment of recurrent pneumothorax and pleural effusion. Also: the condition created by this procedure; adhesion between the parietal and visceral pleurae ( rare )", 1940s; earliest use found in Thorax. From pleuro- + ancient Greek δέσις binding together (from δεῖν to bind + -σις).[pleurodesis etymology, pleurodesis origin, 英语词源]