ratiocination

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌrætɪɒsɪˈneɪʃən/

US:USA pronunciation: respellingUSA pronunciation: respelling(rash′ē os′ə nā′shən, -ō′sə-, rat′ē-)



WordReference Random House Unabridged Dictionary of American English © 2026
ra•ti•oc•i•na•tion  (rash′ē os′ə nā′shən, -ō′sə-, rat′ē-),USA pronunciation n. 
  1. the process of logical reasoning.
  • Latin ratiōcinātiōn- (stem of ratiōcinātiō), equivalent. to ratiōcināt(us) (see ratiocinate) + -iōn- -ion
  • 1520–30
ra′ti•oc′i•na′tive, adj. 

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