from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Fundamental reasons; the basis.
- n. An exposition of principles or reasons.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an explanation of the basis or fundamental reasons for something
- n. a justification or rationalization for something
- n. a liturgical vestment worn by Christian bishops of various denominations
from the GNU version of the Collaborative International Dictionary of English
- n. An explanation or exposition of the principles of some opinion, action, hypothesis, phenomenon, or the like; also, the principles themselves.
from The Century Dictionary and Cyclopedia
- n. The rational basis or motive of something; that which accounts for or explains the existence of something; reason for being.
- n. A rational explanation or statement of reasons; an argumentative or theoretical account; a reasoned exposition.
- n. Same as rational, 2.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)
Late Latin ratiōnāle, from neuter of Latin ratiōnālis, rational; see rational.(American Heritage® Dictionary of the English Language, Fourth Edition)
Around 1650-1650 from the Late Latin ratiōnāle, the neuter form of ratiōnālis ("rational, possessing reason"). (Wiktionary)