- Fallout is defined as the consequence or result of something, or radioactive particles from a nuclear explosion.
- When you get a divorce and, as a result, your friends have to choose sides and you are lonely, these are examples of the fallout of the divorce.
- When a nuclear bomb is dropped on a city, the radioactive particles that remain in the air are an example of the fallout.
A sign for a fallout shelter.
fallout definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- ☆ the descent to earth of radioactive particles, as after a nuclear explosion
- ☆ these particles
- whatever comes as an incidental consequence
fallout definition by American Heritage Dictionary
- a. The slow descent of minute particles of debris in the atmosphere following an explosion, especially the descent of radioactive debris after a nuclear explosion.b. The particles that descend in this fashion.
- An incidental result or side effect: “Other social trends also have psychiatric fallout, and the people who suffer can't afford treatment” (Martha Farnsworth Riche).