Artificial intelligent assistant

ratiocinative

ratiocinative, a.
  (ræʃɪ-, rætɪˈɒsɪnətɪv)
  [ad. L. ratiōcinātīv-us: see ratiocinate and -ive. Cf. F. ratiocinatif (14th c., Oresme).]
  Characterized by, given to, or expressive of, ratiocination.

c 1620 A. Hume Brit. Tongue ii. xii, Conjunction..of it ther be tuoe sortes, the one enunciative, and the other ratiocinative. a 1625 Boys Wks. (1629) 475 All the faculties of thy soule, vegitatiue, sensitiue, ratiocinatiue. a 1677 Hale Prim. Orig. Man. i. ii. 51 The conclusion is attained..without any thing of ratiocinative process. 1817 Coleridge Biog. Lit. 82 The whole gamut of eloquence from the ratiocinative to the declamatory. 1884 Manch. Exam. 16 Oct. 4/7 The machinery of the ratiocinative logician..has no place in his speeches.

Oxford English Dictionary

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