Res extensa

Res extensa is one of the two substances described by René Descartes in his Cartesian ontology (often referred to as "radical dualism"), alongside res cogitans. Translated from Latin, "res extensa" means "extended thing" while the latter is described as "a thinking and unextended thing". Descartes often translated res extensa as "corporeal substance" but it is something that only God can create.