• WordNet 3.6
    • n rationale (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature) "the rationale for capital punishment","the principles of internal-combustion engines"
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Webster's Revised Unabridged Dictionary
    • n Rationale An explanation or exposition of the principles of some opinion, action, hypothesis, phenomenon, or the like; also, the principles themselves.
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Century Dictionary and Cyclopedia
    • n rationale The rational basis or motive of something; that which accounts for or explains the existence of something; reason for being.
    • n rationale A rational explanation or statement of reasons; an argumentative or theoretical account; a reasoned exposition.
    • n rationale Same as rational, 2.
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Chambers's Twentieth Century Dictionary
    • ns Rationale a rational account of anything, with reasons for its existence: a theoretical explanation or solution
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Webster's Revised Unabridged Dictionary
L. rationalis, neut. rationale,. See Rational (a.)


In literature:

The rationale of contradictory opinions may with equal confidence be sought in history.
"Harvard Classics Volume 28" by Various
As to the cause and rationale of these pain-lines, only the barest outlines can be given.
"Preventable Diseases" by Woods Hutchinson
Mental healing, then, is the rationale of the cures.
"Three Thousand Years of Mental Healing" by George Barton Cutten
The weight of human authority is always powerless, and ought to be, where the intelligence is denied a rationale.
"Natural Law in the Spiritual World" by Henry Drummond
They must have it, by the whole reason and rationale upon which the thing depends.
"Eugenics and Other Evils" by G. K. Chesterton
I am not aware that a better rationale can be given of the action of other remedies.
"Hydriatic treatment of Scarlet Fever in its Different Forms" by Charles Munde
In his impetuosity, we find the rationale of much that is peculiar in the style of Dr. Chalmers.
"Spare Hours" by John Brown
There remains, then, as the only intelligible rationale of solar sustentation, Helmholtz's shrinkage theory.
"A Popular History of Astronomy During the Nineteenth Century" by Agnes M. (Agnes Mary) Clerke
The Rationale of the Conventional.
"Art in Needlework" by Lewis F. Day
The rationale of magic, when a combination of skill and fraud imposed upon the vulgar, is easily settled.
"The International Monthly, Volume 3, No. 2, May, 1851" by Various
Now what is the rationale of this kind of clairvoyance?
"Clairvoyance" by Charles Webster Leadbeater
Sometime it is the soul it self, be it sensitive, vegetative, or rationall.
"Democritus Platonissans" by Henry More
The rationale of the process is this.
"Logic, Inductive and Deductive" by William Minto
To penetrate the inventive rationale behind this strange machine is not difficult.
"Elevator Systems of the Eiffel Tower, 1889" by Robert M. Vogel
The rationale of cupellation is simply this.
"Scenes and Adventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas" by Henry Rowe Schoolcraft
If we accept the second reason given for the sickness, it is difficult to see the rationale of it.
"My Path to Atheism" by Annie Besant
The same year, George Ripley reviewed in the "Christian Examiner," Martineau's "Rationale of Religious Enquiry.
"Transcendentalism in New England" by Octavius Brooks Frothingham
"Money" by John P. Jones
It is the mode, or rationale, of all progress from the lower to the highest unity or identification.
"Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 8" by Various
The rationale of such phenomena is not very difficult to comprehend.
"The Catholic World. Volume III; Numbers 1, 2, 3, 4, 5, 6." by E. Rameur

In news:

Obama describes rationale for Afghanistan Dec 14: 60 Minutes' Lesley Stahl joins the Morning Joe panel to discuss the interviews with the president over the weekend.
The rationale expressed by sponsor Bryan Zak is that the estimated $700,000 in revenue could be added back into the budget to spend on necessary city business.
Budget debates omit programs' rationale.
That rationale would sound better in a bill which wouldn't raise the speed limit, a move that arguably would not improve highway safety.
Janvrin questions rationale for being fired.
Any attempt to try and differentiate the hate that took the lives of six million European Jews during the Holocaust from the current vision that seeks the murder of six million Israeli Jews provides a rationale for Islamist extremism.
Lance Shearer/Eagle Correspondent Fire-Rescue Chief Mike Murphy presents the rationale for the new boat.
"We don't innovate here" – Google's curious UK tax rationale .
Phil Boyle offers a regional rationale , LI vs NYC.
Rationale for Using Biological Indicators.
Dalton McGuinty's rationale for shuttering legislature makes no sense: Walkom.
Teaching with Laptops Laptop Rationale .
The value of comprehensive rationale information for documenting a design has long been recognized.
However, detailed rationale is rarely produced in practice because of the substantial time investment required.
Clinton criticizes Bush wiretap rationale .

In science:

The rationale is that c(xo ) measures the similarity between the source profile with a section of y (x) centered at xo ; a peak in c(xo ) is an indication of a source signal at xo .
On Optimal Detection of Point Sources in CMB Maps
Rationale for the structure of the resonator.
Coherent Random Lasing and "Almost Localized" Photon Modes
The rationale behind this remarkable result is the Duistermaat–Heckman theorem [109].
Random matrix theory and symmetric spaces
We shall first present the rationale for this new definition and compare it briefly with the forms already being used.
A New Nonextensive Entropy
The rationale for the recursion relation (4) is as follows.
Hysteresis in Ferromagnetic Random Field Ising Model with an Arbitrary Initial State
The rationale behind equation (13) is similar to the one behind equation (5).
Hysteresis in Ferromagnetic Random Field Ising Model with an Arbitrary Initial State
The rationale for this scenario is very intuitive: we simply assume that the jump in the magnetization curve at some field H2 (R) (or, symmetrically, at −H2 (R)) occurs because, with probability 1 in the thermodynamic limit, there are no metastable states with a low magnetization for H > H2 .
Metastable states and T=0 hysteresis in the random-field Ising model on random graphs
Essential to the rationale underlying the introduction of the geometrical model in §2.2 is its reduction in an appropriate limit to the Poissonization of random involutions.
Correlation functions for random involutions
It appears OSLN’s rationale is that their algorithm goes to the “nearest” energy minimum from a given initial configuration.
Comment on "Jamming at zero temperature and zero applied stress: The epitome of disorder"
In all such cases the rationale of the ME ansatz may be called into question.
The maximum entropy ansatz in the absence of a time arrow: fractional pole models
Jaynes, “On the rationale of maximum entropy metho ds,” Proc.
The maximum entropy ansatz in the absence of a time arrow: fractional pole models
The rationale for reporting the transmit power of the weakest beacon received from a particular neighbor is that it allows to roughly characterize the quality of the corresponding link.
Rapid Prototyping over IEEE 802.11
Note that another proposed basis has been presented in , without much rationale.
The Extended Algebra of the Minimal Models
The rationale for introducing bZθ ,M is that it allows to estimate the distribution of the number of +’s (or −’s) through the identity (valid for λ = 0) P{n+ (X ) − n− (X ) = N M |GN } = bZθ ,M /Zθ ,0 .
Reconstruction for models on random graphs
The rationale behind the minimal strategy is that if all reductions of (λy .P ) Q to β -normal form must reduce inside at least one residual of Q, then it is best to perform reductions in Q first, to avoid proliferation.
A Note on Shortest Developments