fallout
UK: ˈfɔːlaʊt | US: ˈfɑːlaʊt
n. 1. Radioactive particles dispersed in the atmosphere after a nuclear explosion.
n. 2. Unintended consequences or secondary effects of an event or action.
n. 3. A quarrel or disagreement resulting in estrangement.
The word "fallout" originated in the mid-20th century, combining "fall" (from Old English feallan, meaning "to drop or descend") and "out" (from Old English ūt, meaning "external" or "away"). Initially used literally for radioactive debris "falling out" of the sky after nuclear explosions, it later expanded metaphorically to describe secondary consequences or conflicts. The morphemes retain their original spelling and core meanings, reflecting the word's logical progression from physical descent to abstract repercussions.
The nuclear tests caused dangerous fallout to spread across the region.
The political scandal had serious fallout for the party’s reputation.
Their disagreement led to a long-lasting fallout between the two friends.
Scientists monitored the fallout levels after the reactor accident.
The economic fallout from the pandemic affected businesses worldwide.