ratiocinator

noun

ratiocinator

noun

Etymology From ratiocinate + -or.

1

One who ratiocinates; a reasoner.

Hence the rise in publishing of the “smart thinking” book, an elevated species of self-help for the aspiring ratiocinator.2021 August 21, Steven Poole, “Can ‘smart thinking’ books really give you the edge?”, in The Guardian:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.