- Anatomy, Zoology. a delicate serous membrane investing each lung in mammals and folded back as a lining of the corresponding side of the thorax.
- plural of pleuron.
Origin of pleura
1655–65; < New Latin < Greek pleurá (singular) side, rib
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for pleurae
After the pericardium and pleurae have been separated off the remainder of the coelom becomes the peritoneum.
There is probably very little difference in the lower level of the pleurae on the two sides.
- the thin transparent serous membrane enveloping the lungs and lining the walls of the thoracic cavity
- the plural of pleuron
C17: via Medieval Latin from Greek: side, rib
Word Origin and History for pleurae
early 15c., medical Latin, from Greek pleura "side of the body, rib," also "flank of an army, page of a book," of unknown origin.
Online Etymology Dictionary, © 2010 Douglas Harper
- The thin serous membrane that envelops each lung and folds back to make a lining for the chest cavity.
- A membrane that encloses each lung and lines the chest cavity.