Ma'anar ƙamus na kalmar "convolution" ita ce aiki ko tsari na jujjuyawa, wanda ke nufin aikin lissafi na haɗa ayyuka biyu don samar da aiki na uku yana bayyana yadda ɗayan ke canza shi da ɗayan. Gabaɗaya, convolution dabara ce ta lissafi da ake amfani da ita don bayyana alaƙar sigina biyu, kamar siginar sauti ko bidiyo. Ya ƙunshi haɓakawa da haɗa ayyuka biyu akan kewayon da aka bayar, wanda ke haifar da aiki na uku wanda ke nuna yadda siginar ɗaya ke shafar ɗayan. Convolution yana da aikace-aikace a fagage daban-daban, gami da sarrafa sigina, sarrafa hoto, da koyon injina.