[ nook-flash, nyook- ]
/ ˈnukˌflæʃ, ˈnyuk- /
a report of highest precedence notifying the president, secretary of defense, or their deputies of an accidental or unauthorized nuclear-weapon launch or of a nuclear attack.
Origin of NUCFLASH
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019