Pleura

[ploo r-uh] /ˈplʊər ə/

noun, plural pleurae
[ploo r-ee] /ˈplʊər i/ (Show IPA), for 1.
1.
Anatomy, Zoology. a delicate serous membrane investing each lung in mammals and folded back as a lining of the corresponding side of the thorax.
2.
plural of .
[ploo r-on] /ˈplʊər ɒn/
noun, plural pleura
[ploo r-uh] /ˈplʊər ə/ (Show IPA). Entomology.
1.
the lateral plate or plates of a thoracic segment of an insect.
/ˈplʊərə/
noun (pl) pleurae (ˈplʊəriː)
1.
the thin transparent serous membrane enveloping the lungs and lining the walls of the thoracic cavity
2.
the plural of pleuron
/ˈplʊərɒn/
noun (pl) pleura (ˈplʊərə)
1.
the part of the cuticle of arthropods that covers the lateral surface of a body segment
n.

early 15c., medical Latin, from Greek pleura “side of the body, rib,” also “flank of an army, page of a book,” of unknown origin.

pleura pleu·ra (plur’ə)
n. pl. pleu·rae (plur’ē)
The thin serous membrane that envelops each lung and folds back to make a lining for the chest cavity.
pleu’ral adj.
pleura
(plr’ə)
Plural pleurae (plr’ē)
A membrane that encloses each lung and lines the chest cavity.