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delayings
delay
to cause something to happen later than planned or expected
（ present singular third-person ）
（ participle present ）
（ participle past ）
（ past ）
delayed neutrons
plural of delayed neutron
delayed criticality
(nuclear physics) The point at which the prompt neutrons and delayed neutrons produced by a nuclear fission chain reaction, taken together, are just sufficient to sustain the chain reaction (the state of being delayed critical); in this state, changes in reaction power occur slowly, allowing the reaction to be controlled on human timescales, due to the relatively long time delay associated with the emission of the delayed neutrons necessary to maintain the chain reaction.
delayed neutron
(nuclear physics) A neutron produced as a result of nuclear fission which is emitted upon the radioactive decay of a fission product nucleus seconds to minutes later, rather than at the time of the initial fission event. Less than 2% of fission neutrons are delayed neutrons (the exact proportion depends on the nuclide being fissioned).
delayed criticalities
delayed critical
(nuclear physics) Of the point at which the prompt neutrons and delayed neutrons produced by a nuclear fission chain reaction, taken together, are just sufficient to sustain the chain reaction, where changes in reaction power occur slowly.
tape delay
Synonym of broadcast delay
broadcast delay
(broadcasting) A very brief postponement, achieved by technical means, often used in the public broadcasting of live radio or television programs in order to provide sufficient time to edit out undesired content, such as profanity or coughing.
