amyloidosis a disorder characterized by deposit of amyloid in organs or tissues; often secondary to chronic rheumatoid arthritis or tuberculosis or multiple myeloma
catastrophic illness severe illness requiring prolonged hospitalization or recovery; usually involves high costs for hospitals and doctors and medicines
ozone sickness illness that can occur to persons exposed to ozone in high-altitude aircraft; characterized by sleepiness and headache and chest pains and itchiness
illness -
An instance of a disease or poor health.
illness -
A state of bad health or disease.
Wikipedia
Illness (sometimes referred to as ill-health or ailment) is a state of poor health. Illness is sometimes considered a synonym for disease. Others maintain that fine distinctions exist.
OmegaWiki Dictionary
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illness A definite pathological process having a characteristic set of signs and symptoms which are detrimental to the well-being of the individual.