5 to shape so as to form the contour of something. 6 to mark contour lines on. 7 to construct (a road, railway, etc.) to follow the outline of the land. (C17: from French, from Italian contorno, from contornare to sketch, from tornare to turn)
Pleural effusion, also called âwater on the lung,â is an excessive buildup of fluid between your lungs and chest cavity. Thereâs always a small amount of liquid inside your lungs.This fluid works to coat the membranes (pleura) that line the outside of your lungs and lubricate the chest cavity to aid in breathing.he pleura creates too much fluid when itâs irritated or infected. This fluid accumulates in the chest cavity outside the lung, causing whatâs known as pleural effusion. Certain types of cancer, such as lung, breast, and ovarian cancers, can cause pleural effusions. Lymphoma and mesothelioma can cause them too.
Pulmonary Edema Overview. Pulmonary edema literally means an excess collection of watery fluid in the lungs. (pulmonary=lung +edema=excess fluid). However, the lung is a complex organ, and there are many causes of this excess fluid accumulation. Regardless of the cause, fluid makes it difficult for the lungs to function (to exchange oxygen and carbon dioxide with cells in the bloodstream). Air enters the lungs through the mouth and nose, traveling through the trachea (windpipe) into the bronchial tubes.