Definition of backscatter
noun
Physics deflection of radiation or particles through an angle of 180°. radiation or particles that have been deflected in this way. Photography light from a flashgun or other light source that is deflected directly into a lens:backscatter causes an underexposed picture with a blizzard effect
verb
[with object] Physics deflect (radiation or particles) through an angle of 180°: (as adjective backscattered)backscattered sound reaches the sonar receiver
