fallout🔊

The event of small airborne particles falling to the ground in significant quantities as a result of major industrial activity, volcano eruption, sandstorm, nuclear explosion, etc.

The particles themselves.

A negative side effect; an undesirable or unexpected consequence. +

(rare) A declined offer in a sales transaction when acceptance was presumed.

(rare) The person who declines such an offer.

(radio, television, broadcasting) An impromptu guest used to fill in for another guest spot who is a no-show or who has cancelled last minute.