splanch·no·pleure 
(splăngknə-plr′)
(splăngknə-plr′)n.
A layer of cells in a vertebrate embryo, formed by association of part of the mesoderm with the endoderm and developing into the wall of the viscera.
[New Latin splanchnopleura : splanchno-, of viscera; see SPLANCHNOLOGY + Greek pleura, side.]
splanch′no·pleural (-plrəl), splanch′no·pleuric (-plrĭk) adj.