stucco noun 3verb 1forms 5 noun3 •A material with binder and aggregate that is used to coat interior walls or to make interior mouldings. •A material with binder and aggregate that is used to coat exterior walls or to make exterior mouldings. •A work made of stucco; stuccowork.Many stuccos and paintings were also found on the mosaic floor of the presbyterium and choir; most of these are now in the Bardo Museum in Tunis. — 1976 verb1 •To coat or decorate with stucco. formsstuccoed · stuccoing · stuccoes · stuccos · stucchi