Term: megaloblastic anemia: anemia characterized by many large immature and dysfunctional red blood cells (megaloblasts) in the bone marrow; associated with pernicious anemia
Broader: pernicious anemia: a chronic progressive anemia of older adults; thought to result from a lack of intrinsic factor (a substance secreted by the stomach that is responsible for the absorption of vitamin B12) | Unrelated: japanese crab: crabmeat usually canned; from Japan