pronephric duct

pronephric duct /-nef″rik/ [Gk, pro, before, nephros, kidney; L, ducere, to lead] , one of the paired ducts that connect the tubules of each of the pronephros with the cloaca in the early developing vertebrate embryo. They later become the functional mesonephric ducts. Also called archinephric canal, archinephric duct.