pleuron
Concise Oxford English Dictionary © 2008 Oxford University Press:
pleuron /ˈplʊərɒn/
▶noun (pl. pleura /-rə/) Zoology the side wall of each segment of the body of an arthropod.
– origin C18: from Gk, lit. ‘side of the body, rib’.
'pleuron' also found in these Oxford entries:

