先驗

先验
xiānyàn
(philosophy) a priori

CEDICT

Entry Composition

1 先 xiān
  1. beforehand; first; earlier
  2. at first; originally
  3. for the time being; for now
  4. (prefix) my late (in referring to deceased relatives older than oneself)
2 驗 yàn
  1. to examine
  2. to test
  3. to check