Pronunciation: (rē'zu-ning, rēz'ning), [key]
1. the act or process of a person who reasons.
2. the process of forming conclusions, judgments, or inferences from facts or premises.
3. the reasons, arguments, proofs, etc., resulting from this process.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.