By sickness is understood any affection of the body which deprives it temporarily of the power to fulfill is usual functions. 2. Sickness is either such as affects the body generally, or only some parts of it. Of the former class, a fever is an example; of the latter, blindness. When a process has been issued against an individual for his arrest, the sheriff or other officer is authorized, after he has arrested him, if he be so dangerously sick, that to remove him would endanger his life or health, to let him remain where he found him, and to return the facts at large, or simply languidus. Disease; malady; any morbid condition of the body (including insanity) which, for the time being, hinders or prevents the organs from normally discharging their several functions.
SICKNESS
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.