rational

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rational

 [rash´un-al]
based upon reason; characterized by possession of one's reason.

ra·tion·al

(rash'un),
1. Pertaining to reasoning or to the higher thought processes; based on objective or scientific knowledge, in contrast to empiric (1).
2. Influenced by reasoning rather than by emotion.
3. Having the reasoning faculties; not delirious or comatose.
[L. rationalis, fr. ratio, reason]

rational

/ra·tion·al/ (ră´shun-al) based upon reason; characterized by possession of one's reason.

rational

(răsh′ə-nəl)
adj.
1. Having or exercising the ability to reason.
2. Consistent with or based on reason or good judgment; logical or sensible: rational decisions.

ra′tion·al·ly adv.
ra′tion·al·ness n.

rational

[rash′ənəl]
Etymology: L, rationalis, reasonable
1 pertaining to a measure, method, or procedure based on reason.
2 pertaining to a therapeutic method based on an understanding of the cause and mechanisms of a specific disease and the potential effects of the drugs or procedures used in treating the disorder.
3 sane; capable of normal reasoning or behavior.

ra·tion·al

(rash'ŭn-ăl)
1. Pertaining to reasoning or to the higher thought processes; based on objective or scientific knowledge, in contrast to empiric (1).
2. Influenced by reasoning rather than by emotion.
3. Having the reasoning faculties; not delirious or comatose.
[L. rationalis, fr. ratio, reason]

rational

based upon reason.

rational deductive diagnosis
a diagnosis based on rationalization of the signs with pathological and epidemiological principles, as distinct from empirical diagnosis.
References in classic literature ?
It is almost impossible to say if he ever had considered the event rationally.
This belonged to an imposing carriage gate in a high, clean wall between two houses, of which one rationally enough bore the number 9 and the other was numbered 37; but the fact that this last belonged to Porthill Street, a street well known in the neighbourhood, was proclaimed by an inscription placed above the ground-floor windows by whatever highly efficient authority is charged with the duty of keeping track of London's strayed houses.
By a species of pious fraud, for which no doubt the worthy priest found his absolution in the purity of his motives, he declared that, while no positive change was actually wrought in the mind of Middleton, there was every reason to hope the entering wedge of argument had been driven to its head, and that in consequence an opening was left, through which, it might rationally be hoped, the blessed seeds of a religious fructification would find their way, especially if the subject was left uninterruptedly to enjoy the advantage of catholic communion.
The only hope that could rationally give us the least shadow of expectation was, if we might find some bay or gulf, or the mouth of some river, where by great chance we might have run our boat in, or got under the lee of the land, and perhaps made smooth water.
Muscat: Public have been urged by Public Authority of Electricity and Water (PAEW) to use water rationally for the coming two days as a technical problem has developed in the desalination plant in Quriyat.
If they act rationally, we can see positive corrections during 2015.
It's in everyone's interests - including Alex Salmond's - to act rationally and reasonably by parking that idea and moving on.
Ironically though, Amerini maintains with Thomas that the rationally ensouled is not considered thus ensouled because the subject actually acts rationally, but because it's supposed that it potentially could.
It is time that our military establishment thinks rationally for once," it said.
Nile is initially focusing its efforts on developing its lead compound, cenderitide, a novel rationally designed chimeric peptide in clinical studies for the treatment of heart failure, and CU-NP, a novel rationally designed natriuretic peptide.
BDI MP Teuta Arifi comments for Dnevnik that it would be good for us to rationally think on what we are going to be told in Brussels and not to cause a collective hysteria about the injustice inflicted on this nation and to look for the blame in everybody but ourselves.
When consumed rationally it maintains the body spaces at different body levels which helps maintain body tone.