adj. Pertaining to or characterized by ratiocination, discursive thinking, or inferential knowledge.
the GNU version of the Collaborative International Dictionary of English
adj. Characterized by, or addicted to, ratiocination; consisting in the comparison of propositions or facts, and the deduction of inferences from the comparison; argumentative.
The Century Dictionary and Cyclopedia
Of the nature of reasoning; pertaining to or connected with the act of reasoning. The word is misused by sorne modern writers. See ratiocination, 2.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. based on exact thinking
Word Usage
"When I use the word ratiocinative, it's because it is the correct word for the job."