The Collaborative International Dictionary
Parapterum
Parapterum \Pa*rap"te*rum\, n.; pl. Paraptera. [NL. See Para-, and Pteron.] (Zo["o]l.) A special plate situated on the sides of the mesothorax and metathorax of certain insects.
Wiktionary
parapterum
n. (context zoology English) A special plate situated on the sides of the mesothorax and metathorax of certain insects.