ratiˈocinator
[a. L. ratiōcinātor agent-n. f. ratiōcinārī to ratiocinate.]
One who reasons.
| 1824 Blackw. Mag. XV. 51 The puzzlement of ratiocinators became profounder than ever. 1971 Heath & Prendergast tr. J. Kristeva in Signs of Times 4 His [sc. Leibniz's] attempt to construct a ‘calculus ratiocinator’. |