Noun: pernicious anemiapur'nishus u'neemeeu Usage: N. Amer (=pernicious 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 anaemia [Brit, Cdn], malignant anemia [N. Amer], malignant anaemia [Brit, Cdn]