I. ˈ ̷ ̷ˌ ̷ ̷ noun
( -s )
Etymology: fall out
1. : the descent through the atmosphere of often radioactive particles stirred up by or resulting from a nuclear explosion
2. : the particles that descend through the atmosphere following a nuclear explosion
II. noun
1. : an incidental result or set of consequences
psychological fallout from this very severe operation — Jim Lehrer
2. : particulate matter dispersed through the air and landing in a wide distribution