propleuron
/prəʊˈplʊərɒn/ /prəʊˈplɔːrɒn/Entomology
noun
Either of the pleura of the prothorax of an insect.
- Not distinguishable from propleurum when used in the plural only..
Origin
Mid 19th century; earliest use found in Edward Newman (1801–1876), naturalist. From pro- + pleuron.