The Collaborative International Dictionary
Parapleura
Parapleura \Par`a*pleu"ra\, n.; pl. Parapleur[ae]. [NL. See Para-, and 2d Pleura.] (Zo["o]l.) A chitinous piece between the metasternum and the pleuron of certain insects.
Wiktionary
parapleura
n. (context zoology English) A chitinous piece between the metasternum and the pleuron of certain insects.