| megaloblast | <haematology> A large nucleated cell which is the precurson to alterations of the red blood cell sequence, these cells are found almost exclusively in people with pernicious anaemia. (29 Oct 1998) |
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| megaloblastic | <haematology> A large abnormal red blood cell appearing in the blood in pernicious anaemia. (18 Nov 1997) |
| megaloblastic anaemia | Any anaemia in which there is a predominant number of megaloblastic erythroblasts, and relatively few normoblasts, among the hyperplastic erythroid cells in the bone marrow (as in pernicious anaemia). (05 Mar 2000) |