pernicious anemia

from WordNet (r) 3.0 (2006)

pernicious anemia
    n 1: 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) [syn: {pernicious anemia},
         {pernicious anaemia}, {malignant anemia}, {malignant
         anaemia}]

from The Collaborative International Dictionary of English v.0.48

malignant anemia \malignant anemia\ n. (Med.)
   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 B-12); also called {pernicious anemia}.
   [WordNet 1.5]

[email protected]