Definitions
fallout Tweet Definition of fallout Like Definition of fallout on Facebook
noun 
  1. A radioactive dust, the radioactive airborne particles that fall to the ground after a nuclear explosion.
  2. A pollution dust, the non-radioactive airborne particles that fall to the ground.
Air pollution return to the ground in the form of acid rain and soot .
  1. A negative side effect, an undesirable or unexpected consequence.
  2. (rare) A declined offer in a sales transaction when acceptance was presumed
  3. (rare) The person who declines such an offer
Etymology: From fall + out


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