Acidophilia

the capacity of cell structures to be stained by acid: eosin, acid fuchsine, picric acid, and others. Such structures are called oxyphile, eosinophilic, fuchsinophil, and so on. The cause of acidophilia is principally the basic (alkaline) properties of the stainable materials. Acidophilia is used to distinguish various cell structures, for example, in analyzing blood cells.