新浪首頁 網站導航
 
rational   WordNet 2.0

- having its source in or being guided by the intellect (distinguished from experience or emotion)
"a rational analysis"

 
回頁首

- of or associated with or requiring the use of the mind
"intellectual problems"
"the triumph of the rational over the animal side of man"

 
回頁首

- consistent with or based on or using reason
"rational behavior"
"a process of rational inference"
"rational thought"

 
回頁首

- capable of being expressed as a quotient of integers
"rational numbers"

 
回頁首

Rational   Webster's Revised Unabridged Dictionary (1913)

1. Relating to the 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 formulæ. 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 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.

Syn. -- Sane; sound; intelligent; reasonable; sensible; wise; discreet; judicious. -- Rational, Reasonable. Rational has reference to reason as a faculty of the mind, and is opposed to irrational; as, a rational being, a rational state of mind, rational views, etc. In these cases the speculative reason is more particularly referred to. Reasonable has reference to the exercise of this faculty for practical purposes, and means, governed or directed by reason; as, reasonable desires or plans; a reasonable charge; a reasonable prospect of success.

"What higher in her society thou find'st Attractive, human, rational, love still." -- Milton.

"A law may be reasonable in itself, although a man does not allow it, or does not know the reason of the lawgivers." -- Swift.

 
回頁首

1. A rational being. Young.

 
回頁首

新浪簡介 | About SINA | 新浪網尋人 | 網站導航 | 意見信箱 | 廣告查詢 | 加入會員 | 隱私權保護
Copyright © 2020 SINA.com All Rights Reserved  版權所有 不得轉載