English▸ noun Physics deflection of radiation or particles through an angle of 180°.
▪ radiation or particles that have been deflected through an angle of 180°.
▪ 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.