Answer:

PLEURA

Answer	Crossword Clue
PLEURA	Lung-covering membrane
PLEURA	Mammalian lung membrane
PLEURA	Lung membrane

PLEURA	Lining that keeps the lungs from rubbing against the ribs
PLEURA	Lung membrane.
PLEURA	Ling covering.
PLEURA	Lung part
PLEURA	Chest cavity membrane
PLEURA	Lung covering
PLEURA	Pulmonary membrane
PLEURA	Thin lung membrane