Ra´tion`al   Pronunciation: răsh´ŭn`al
a.1.Relating to the reason; not physical; mental.
2.Having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning.
It is our glory and happiness to have a rational nature.
- Law.
3.Agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious; as, rational conduct; a rational man.
4.(Chem.) Expressing the type, structure, relations, and reactions of a compound; graphic; - said of formulæ. See under Formula.
Rational horizon
b - (Astron.) See Horizon, 2 (b).
Rational quantity
(Alg.) one that can be expressed without the use of a radical sign, or in exact parts of unity; - opposed to irrational or radical quantity.
Rational symptom
(Med.) one elicited by the statements of the patient himself and not as the result of a physical examination.
n.1.A rational being.
Adj.1.rational - consistent with or based on or using reason; "rational behavior"; "a process of rational inference"; "rational thought"
irrational - not consistent with or using reason; "irrational fears"; "irrational animals"
2.rational - of or associated with or requiring the use of the mind; "intellectual problems"; "the triumph of the rational over the animal side of man"
Synonyms: noetic, intellectual
3.rational - capable of being expressed as a quotient of integers; "rational numbers"
irrational - real but not expressible as the quotient of two integers; "irrational numbers"
4.rational - having its source in or being guided by the intellect (distinguished from experience or emotion); "a rational analysis"
rational - [Mathematics] a fractional number n/d, where n and d are integers, n is the numerator and d is the denominator. The set of all rational numbers is usually called Q. Computers do not usually deal with rational numbers but instead convert them to real numbers which are represented (approximately in some cases) as floating-point numbers. Compare irrational.
acceptable, admissible, algorismic, algorithmic, aliquot, all there, analytic, balanced, bright, calm, cardinal, cerebral, circumspect, clear-eyed, clearheaded, clearminded, cogent, commonsense, compos mentis, conceptive, conceptual, consequent, cool, coolheaded, credible, decimal, differential, digital, discriminating, discursive, down-to-earth, earthy, endopsychic, enlightened, even, everyday, exponential, figural, figurate, figurative, finite, fractional, hardheaded, healthy-minded, ideational, imaginary, impair, impossible, infinite, informed, integral, intellectual, internal, just, justifiable, knowing, knowledgeable, legitimate, level-headed, levelheaded, logarithmic, logical, logometric, lucid, matter-of-fact, mental, mentally sound, negative, noetic, noological, normal, not so dumb, numeral, numerary, numerative, numeric, odd, of sound mind, ordinal, pair, philosophical, phrenic, plausible, positive, positivistic, possible, practical, practical-minded, pragmatic, prime, prudent, psychic, psychologic, radical, ratiocinative, ratiocinatory, real, realist, realistic, reasonable, reasoning, reciprocal, right, sane-minded, scientific, scientistic, secular, sober, sober-minded, sophic, sound-minded, sound-thinking, spiritual, stable, straight-thinking, strong-minded, subjective, submultiple, surd, thinking, together, transcendental, understanding, unideal, unidealistic, unromantic, unsentimental, well-argued, well-balanced, well-founded, well-grounded, wholesome, worldly
Translate Rational to Spanish, Translate Rational to German, Translate Rational to French
Ratio est legis anima
Ratio est radius divini luminis
Ratio et auctoritas duo clarisima mundi limina
Ratio in jure aequitas integra
Ratio legis est anima legis
Ratio non clauditur loco
Ratio of a geometrical progression
Ratio potest allegari deficiente lege
ration card
ration out
-- Rational --
RATional Fortran
Rational horizon
rational motive
rational number
Rational quantity
Rational symptom
Rationalibus divisis
rationalise away
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