Corpus sive materia. Estensione e movimento in Descartes

As of the early seventeenth century, the collapse of the hylomorphic conception of nature offers the opportunity for an association - which was unthinkable in the Aristotelo-scholastic context - between the notions of 'body' and matter. In this paper, I endeavor to show that Descartes is among the emblematic cases of this conceptual switch, dwelling on his sources, as well as on the metaphysical and physical correlates of this option.