rational : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: rational	by the DICT Development Group
4 results for rational
From WordNet (r) 3.0 (2006) [wn]:
rational adj consistent with or based on or using reason; "rational behavior"; "a process of rational inference"; "rational thought" Antonym(s): irrational of or associated with or requiring the use of the mind; "intellectual problems"; "the triumph of the rational over the animal side of man" Synonym(s): intellectual, rational, noetic capable of being expressed as a quotient of integers; "rational numbers" Antonym(s): irrational having its source in or being guided by the intellect (as distinguished from experience or emotion); "a rational analysis" n an integer or a fraction [syn: rational number, rational]
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Rational \Ra"tional\, n. A rational* being. --Young.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Rational \Ra"tional\, a. [L. rationalis: cf. F. rationnel. See {Ratio}, {Reason}, and cf. {Rationale}.] 1. Relating to reason; not physical; mental. Moral philosophy was his chiefest end; for the rational, the natural, and mathematics . . . were but simple pastimes in comparison of the other. --Sir T. North. 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 formul[91]. See under {Formula}. {Rational horizon}. (Astron.) See {Horizon}, 2 (b) . {Rational quantity} (Alg.), one that can be expressed without the use of a radical sign, or in extract 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.
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
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}.