Cri"sis (kr?"s?s), n.; pl. Crises (-s&?;z). [L. crisis, Gr. &?;&?;&?;&?;, fr. &?;&?;&?;&?; to separate. See Certain.] 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.
Dryden.

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

2. (Med.) 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.

Till some safe crisis authorize their skill.
Dryden.

• a crucial or decisive point or situation; a turning point
  
• an unstable situation, in political, social, economic or military affairs, especially one involving an impending abrupt change
  
• a sudden change in the course of a disease, usually at which the patient is expected to recover or die
  
• a traumatic or stressful change in a person's life
  
• a point in a drama at which a conflict reaches a peak before being resolved
  
  Dutch
• crisis
  
• financial crisis