Noun: malignant anemia Usage: N. Amer (=malignant anaemia)
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) - pernicious anemia [N. Amer], pernicious anaemia [Brit, Cdn], malignant anaemia [Brit, Cdn]