discoidal
dis.coi.dal \dis-'ko.id-*l\ aj : of, resembling, or producing a disk : as of a gastropod shell : having the whorls form a flat coil : having the villi restricted to one or more disklike areas
dis.coi.dal \dis-'ko.id-*l\ aj : of, resembling, or producing a disk : as of a gastropod shell : having the whorls form a flat coil : having the villi restricted to one or more disklike areas