ill, illness - being sick - ( Condition Deviation, Affect, sickness, Morbus, indisposition, Disease) Disruption of health, to be limited in movement, function, and practicing tasks. State in which the life processes are not properly and normally expired, poor health, having a disease, disorder or other malfunctioning of the mind or body. Or gradually (free) suddenly developed (= acute), short or long term (= chronic) condition that can be local (= local), but also to the whole body (systemic =). Each process in the organism, that due to harmful influences, brings about changes in the quantitative or qualitative functioning of cells or tissues, causing the functional balance of body and / or mind is disturbed and a response to the restoration of this (or new) balance be created.