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critical
(redirected from embryological critical period)

   Also found in: Dictionary/thesaurus, Medical, Legal 0.01 sec.
critical
Essential for continued operations. In risk analysis, one classifies data by the degree of sensitivity and criticality. See sensitive and risk assessment.
critical
1. Informal so seriously injured or ill as to be in danger of dying
2. Physics of, denoting, or concerned with a state in which the properties of a system undergo an abrupt change
3. go critical (of a nuclear power station or reactor) to reach a state in which a nuclear-fission chain reaction becomes self-sustaining

critical [′krid·ə·kəl]
(nucleonics)
Capable of sustaining a chain reaction at a constant level.


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