sickler
n.— «On a matter of semantics, the use of nomenclature derived from the names of diseases, such as “diabetics,” “epileptics” and, in this case, “sicklers,” may be viewed as pejorative and emphasise the disease rather than the humanity of the person. Therefore, the preferred usage is the “person with” or “living with a particular condition,” in this case, sickle cell disease.» —“Operations of the Sickle Cell Unit” by Susanna Bortolusso Ali, et al Jamaica Gleaner (Kingston) Oct. 24, 2008. (source: Double-Tongued Dictionary)