| Noun | 1. | sickness - impairment of normal physiological function affecting part or all of an organismcondition - an illness, disease, or other medical problem; "a heart condition"; "a skin condition" health problem, ill health, unhealthiness - a state in which you are unable to function normally and without pain ague - a fit of shivering or shaking 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 collapse, prostration - an abrupt failure of function or complete physical exhaustion; "the commander's prostration demoralized his men" bends, caisson disease, decompression sickness, gas embolism, aeroembolism, air embolism - pain resulting from rapid change in pressure food poisoning, gastrointestinal disorder - illness caused by poisonous or contaminated food lead poisoning, plumbism, saturnism - toxic condition produced by the absorption of excessive lead into the system hypermotility - excessive movement; especially excessive motility of the gastrointestinal tract indisposition - a slight illness 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 toxaemia, toxaemia of pregnancy, toxemia, toxemia of pregnancy - an abnormal condition of pregnancy characterized by hypertension and edema and protein in the urine growth - (pathology) an abnormal proliferation of tissue (as in a tumor) |
| 2. | sickness - defectiveness or unsoundness; "drugs have become a sickness they cannot cure"; "a great sickness of his judgment" defectiveness, faultiness - the state of being defective | |
| 3. | sickness - the state that precedes vomiting kinetosis, motion sickness - the state of being dizzy or nauseated because of the motions that occur while traveling in or on a moving vehicle symptom - (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease morning sickness - nausea early in the day; a characteristic symptom in the early months of pregnancy |