CRITICAL
critical
Noun
Adjective
- Inclined to find fault or criticize; fastidious; captious; censorious; exacting.
 - Pertaining to, or indicating, a crisis or turning point.
 - Extremely important.
 - Relating to criticism or careful analysis, such as literary or film criticism.
 - Of a patient condition involving unstable vital signs and a prognosis that predicts the condition could worsen; or, a patient condition that requires urgent treatment in an intensive care or critical care medical facility.
 - Likely to go out of control if disturbed, that is, opposite of stable.
 - Of the point (in temperature, reagent concentration etc.) where a nuclear or chemical reaction becomes self-sustaining.
 
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