haemochromatosisEnglishOxford Dictionary of Englishhaemochromatosis /ˌhiːmə(ʊ)krəʊməˈtəʊsɪs / (US English hemochromatosis) ▸ noun [mass noun] Medicine a genetic or acquired disorder in which iron-binding protein accumulates in various tissues, typically leading to liver damage, diabetes mellitus, and bronze discoloration of the skin.