μεταστοιχείωσις
From LSJ
ἔκστασίς τίς ἐστιν ἐν τῇ γενέσει τὸ παρὰ φύσιν τοῦ κατὰ φύσιν → what is contrary to nature is any developmental aberration from what is in accord with nature (Aristotle, On the Heavens 286a19)
German (Pape)
[Seite 154] ἡ, die Umwandlung, andere Zusammensetzung der Elemente od. Bestandtheile eines Körpers, Sp.
