窮理 きゅうり study of natural laws Meanings also 究理 noun study of natural laws branch of neo-Confusianist scholarship Its kanji 窮 キュウ、キョウ · きわ.める、きわ.まる、きわ.まり、きわ.み hard up, destitute, suffer, perplexed, cornered 理 リ · ことわり logic, arrangement, reason, justice, truth