noun, plural blas·to·mas, blas·to·ma·ta [bla-stoh-muh-tuh] /blæˈstoʊ mə tə/. Pathology.
- a tumor originating from undifferentiated embryonic cells and having little or no connective tissue.
noun plural -mata or -mas
- a tumour composed of embryonic tissue that has not yet developed a specialized function
- (in combination)neuroblastoma
n. pl. blas•to•mas
- A neoplasm composed of immature, undifferentiated cells.blastocytoma embryonal carcinosarcoma