Noun

• 1. a system of philosophical and religious doctrines composed of elements of Platonism and Aristotelianism and oriental mysticism; its most distinctive doctrine holds that the First Principle and source of reality transcends being and thought and is natura

  "Neoplatonism was predominant in pagan Europe until the 6th century"

  "Neoplatonism was a major influence on early Christian writers and on later medieval and Renaissance thought and on Islamic philosophy"