n.
An abnormally large nucleated red blood cell found especially in people having pernicious anemia or certain vitamin deficiencies.
megaloblastic meg'a·lo·blas'tic adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
