Of the common causes for exudative pleural effusions, parapneumonic effusions have the highest diagnostic priority. Even in the face of antibiotic therapy, infected pleural effusions can rapidly coagulate and organize to form fibrous peels that might require surgical decortication.
Retrogradation is the landward change in position of the front of a river delta with time.etrogradation is the landward change in position of the front of a river delta with time.
transmutation. 1  the act or process of transmuting. 2  the fact or state of being transmuted. 3  change into another nature, substance, form, or condition. 4  Biology. the transformation of one species into another. 5  Physics. any process in which a nuclide is transformed into a different nuclide, usually one of a different element. Alchemy. the supposed conversion of base metals into metals of greater value, especially into gold or silver.