Prism mai quadrangular siffa ce mai girma uku wacce ke da tafarki huɗu a matsayin tushe da kuma fuskoki huɗu masu ma'ana guda huɗu waɗanda ke haɗa ɓangarorin madaidaicin tushe. Ana kuma san shi da prism rectangular ko cuboid. Kalmar “quadrangular” tana nufin gaskiyar cewa gindin prism ɗin ɗimbin ɗabi’a ne, wanda shi ne polygon mai fuska huɗu.
