n, pl  -lia   :  epithelium derived from mesoderm that lines the body cavity of a vertebrate embryo and gives rise to epithelia (as of the peritoneum, pericardium, and pleurae), striated muscle, heart muscle, and several minor structures me*so*the*li*al adj 
 
 
 
Similar sounding terms:  me·so·the·li·o·ma 
 
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