唯理论 wéilǐlùn rationalism Definitions Defs Origin Strokes Stroke Words Sentences Sents 唯 wéi noun -ism (bound form) prefix used in philosophical terms representing a specific school of thought or "-ism"理论 理論 lǐlùn noun theory a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained; doctrine