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.

Origin of blastoma Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for blastoma


noun plural -mata or -mas

  1. a tumour composed of embryonic tissue that has not yet developed a specialized function
  2. (in combination)neuroblastoma

Word Origin for blastoma

C20: New Latin, from blasto- + -oma
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

blastoma in Medicine



n. pl. blas•to•mas

A neoplasm composed of immature, undifferentiated cells.blastocytoma embryonal carcinosarcoma
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.