The phrase "momentary loss" means a very brief period of not having or experiencing something.
Sentences with «momentary loss»
They should not fall to any lose of momentary loss of concentration. (justarsenal.com)
Ford's announcement came on the same day that the National Highway Traffic Safety Administration opened a formal investigation of the 2010 Toyota Prius hybrid to determine whether 37,000 of those vehicles suffer momentary loss of braking capabilities. (autoweek.com)
Fainting (also called syncope) is a sudden, momentary loss of consciousness with spontaneous recovery. (vetmed.tufts.edu)