WordReference Random House Unabridged Dictionary of American English © 2026
NUCFLASH
(no̅o̅k′flash′, nyo̅o̅k′-),USA pronunciation n.
- Military, Governmenta 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.
- nuc(lear) flash