makroskoopiliselt määratav kahanemispoorsus; selline makropoorsus on üldjuhul tingitud probleemidest valandi sulametalliga toitmisel tardumiskahanemisel (vt tardumiskahanemine, kahanemispoorsus; vrd kahanemismikropoorsus), isolated, clustered, or interconnected voids in a casting that are detectable macroscopically; such voids are usually associated with abrupt changes in section size and are caused by feeding that is insufficient to compensate for solidification shrinkage (see: solidification shrinkage, shrinkage porosity; compare: microshrinkage)