Crisis /(kr?"s?s)/

pl. Crises ((-sz))

1. The point of time when it is to be decided whether any affair or course of action must go on, or be modified or terminate; the decisive moment; the turning point.

   This hour's the very crisis of your fate.

   The very times of crisis for the fate of the country.

2. That change in a disease which indicates whether the result is to be recovery or death; sometimes, also, a striking change of symptoms attended by an outward manifestation, as by an eruption or sweat. (Med.)

   Till some safe crisis authorize their skill.