- an abnormally large, immature, and dysfunctional red blood cell found in the blood of persons with pernicious anemia or certain other disorders.
Origin of megaloblast
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for megaloblast
The megaloblast is probably a distinct cell, not merely a larger size of the normoblast.
Any nucleated red cell, but especially the megaloblast, may exhibit polychromatophilia.
- an abnormally large red blood cell precursor, present in certain types of anaemia
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
- An abnormally large nucleated red blood cell found especially in pernicious anemia or in certain vitamin deficiencies.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.