noun
Medical term borrowed from German, used in clinical or hospital contexts to refer to a patient or someone suffering from an illness.
from German Kranke
その病院では、クランケ一人ひとりに合わせた治療を行っている。
At that hospital, they provide treatment tailored to each individual patient.
彼は長年クランケとして闘病生活を送っている。
He has been living as a sufferer of illness for many years.