plural of delayed criticality

plural of 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).

plural of call delay

(calculus) a type of differential equation in which the derivative of the unknown function at a certain time is given in terms of the values of the function at previous times

plural of delay differential equation

If a wrong is not redressed within a reasonable time, it is as though the wrong were not redressed at all.

A circadian rhythm sleep disorder in which the subject falls asleep some hours after midnight and has difficulty waking up in the morning.

(less common, telecommunications) round-trip time

plural of round-trip delay time