Alexander of Aphrodisias (ăfrōdĭsh`ēəs), fl. A.D. 200, Greek Peripatetic philosopher. A celebrated ancient commentator on Aristotle, he was often called the Exegete. Among his extant writings are portions of commentaries on several of Aristotle's works, including the Metaphysics, as well as some original treatises. These latter include On the Soul, in which Alexander examines the nature of human intellect, and On Fate, a refutation of the Stoic doctrine of determinism. Some of the works attributed to Alexander are thought to be spurious.