rational
英 ['ræʃ(ə)n(ə)l]
美['ræʃnəl]
	    - adj. 合理的;理性的
 - n. 有理数
 
英英释意
- 1. consistent with or based on or using reason;
 - "rational behavior"
 - "a process of rational inference"
 - "rational thought"
 
- 2. of or associated with or requiring the use of the mind;
 - "intellectual problems"
 - "the triumph of the rational over the animal side of man"
 
- 3. capable of being expressed as a quotient of integers;
 - "rational numbers"
 
- 4. having its source in or being guided by the intellect (distinguished from experience or emotion);
 - "a rational analysis"