BACKSCATTER is validvalid

to reflect waves toward their origin [v BACKSCATTERED, BACKSCATTERING, BACKSCATTERS]

146,342 of 196,601 in NWL2023·also valid in CSW24

the deflection of radiation or particles by scattering through angles greater than 90 degrees with reference to the original direction of travel [n -S] / to scatter in this way [v -ED, -ING, -S]