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Related to criticality: Self-organized criticality


n. pl. crit·i·cal·i·ties
1. The quality, state, or degree of being of the highest importance: "The challenge of our future food supply is approaching criticality" (New York Times).
2. Physics
a. The point at which a nuclear reaction is self-sustaining.
b. The state of a substance or system at its critical point.


1. (General Physics) the state of being critical
2. (Nuclear Physics) physics the condition in a nuclear reactor when the fissionable material can sustain a chain reaction by itself
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.criticality - a state of critical urgency
urgency - the state of being urgent; an earnest and insistent necessity
2.criticality - a critical state; especially the point at which a nuclear reaction is self-sustaining
critical point, crossroads, juncture - a crisis situation or point in time when a critical decision must be made; "at that juncture he had no idea what to do"; "he must be made to realize that the company stands at a critical point"
flash point, flashpoint - point at which something is ready to blow up
References in periodicals archive ?
The result, possibly due to a miscalculation in the amount of uranium, was that seven times more than the maximum permissible amount of radioactive material was transferred into the precipitation tank, thereby leading to a criticality incident.
poured an excessive amount of uranium into a processing tank, setting off a criticality accident.
In educating new employees, JCO declared that the system is designed so that no criticality could occur, and did not discuss such an eventuality.
The other two are Leroy Lewis, a chemist at the department's laboratory in Idaho, and Thomas McLaughlin, a specialist in criticality at the department's Los Alamos laboratory.
Apart from prompt criticality, another state of criticality is delayed criticality, in which energy produced by fission is emitted with long delays, allowing power changes to occur slowly.
Thus, we can conclude that industry spending on any particular IT product or service is an important indicator of the criticality of that product or service for the industry.
The firm's preoccupation with work efficiency, and its neglect of safety over many years formed the backdrop to this criticality accident.
AERB s nod for criticality and commissioning of commercial production would come after the inspection of the site by a team which will include members from International Atomic Energy Agency.
Nuclear Regulatory Commission said Thursday it has issued a notice to nuclear fuel plant operators it regulates reminding them to implement controls to avoid a nuclear criticality accident similar to the Sept.
Our experts on nuclear criticality safety showed the depth of their knowledge when they represented the UK at an International Conference.
2) The analysis and assessment of infrastructure criticality.
The achievement of criticality by the nuclear reactor onboard INS Arihant marked the conclusion of harbour trials.

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