英语词汇“rational”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	rational
释义	ra·tio·nal I. \ˈrashən^əl, -shnəl, ˈraash-, ˈraish-\ adjective Etymology: Middle English racional, from Latin rationalis, from ration-, ratio reason, computation, reasoning + -alis -al 1. : having reason or understanding : reasoning < rational creature > < a rational being > < embryo had a vegetable life, then an animal life, and finally a rational life — S.F.Mason > 2. a. : of, relating to, or based upon reason < provide a literary as well as a rational education — G.K.Chalmers > < rational analysis of the problem — R.C.Doty > b. : using medical treatments based on reason or general principles — used especially of an ancient school of physicians; opposed to empirical 3. : involving only multiplication, division, addition, and subtraction and only a finite number of times : not involving a surd or indicated but not extractable root < 3 and 2 + 3/5 are rational expressions > 4. a. : agreeable to reason : intelligent, sensible < gives a quite rational explanation of the passage — Modern Language Notes > < a rational … world trade policy — Nation's Business > < the advantages of a rational orthography — C.H.Grandgent > b. : rationalistic 5. : capable of being measured in terms of the mora in Greek and Latin prosody : having the normal ratio between arsis and thesis Synonyms: reasonable: rational usually implies a latent or active power to make logical inferences and draw conclusions that enable one to understand the world about him and relate such knowledge to the attainment of ends, often, in this use, opposed to emotional or animal; in application to policies, projects, or acts, rational implies satisfactory to the reason or chiefly actuated by reason < the triumph of the rational over the emotional side of man > < his was a mind so purely rational that it had long since demanded and received absolute divorce from his naturally impetuous heart — Elinor Wylie > < the rational, the intelligent, the orderly processes of behavior — Lewis Mumford > < we may seek to change another person's convictions in a rational manner either by bringing to his notice evidence that he did not previously know about or by inducing in him a process of rational inference — R.H.Thouless > reasonable usually carries a much weaker implication of the power to reason in general or of guidance by conclusions drawn by the reasoning power, rather applying to actions or decisions or choices that are practical, sensible, just, or fair < the longing to achieve is more emotional than reasonable — H.S.Canby > < no English author has given an ampler and more reasonable interpretation of life — W.S.Maugham > < the amount of uncompleted work is relatively small and can be completed within a reasonable period of time — Loyola University Bulletin > < the heifers and cows may be expected to give a reasonable milk yield — Allan Fraser > < contributions must be reasonable in amount — C.M.Winslow > II. noun (-s) : something rational: as a. archaic : a rational creature; especially : a human being < not as rationals, but as animals — Thomas Paine > b. : a rational expression in mathematics < consider the set of all rationals, excluding zero — Harry Lass > c. : rationale < the decided shift in production rational — Dun's Review > III. adjective : relating to, consisting of, or being one or more rational numbers
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