[mass noun]a belief or theory that opinions and actions should be based on reason and knowledge rather than on religious belief or emotional response 唯理主义 scientific rationalism. 科学唯理主义。 ■(Philosophy)the theory that reason rather than experience is the foundation of certainty in knowledge (哲)唯理论,理性主义 ■(Theology)the practice of treating reason as the ultimate authority in religion (神学)理性至上