# trans-rational

## rational

[rash-uh-nl, rash-nl]
1.
agreeable to reason; reasonable; sensible: a rational plan for economic development.
2.
having or exercising reason, sound judgment, or good sense: a calm and rational negotiator.
3.
being in or characterized by full possession of one's reason; sane; lucid: The patient appeared perfectly rational.
4.
endowed with the faculty of reason: rational beings.
5.
of, pertaining to, or constituting reasoning powers: the rational faculty.
6.
proceeding or derived from reason or based on reasoning: a rational explanation.
7.
Mathematics.
a.
capable of being expressed exactly by a ratio of two integers.
b.
(of a function) capable of being expressed exactly by a ratio of two polynomials.
8.
Classical Prosody. capable of measurement in terms of the metrical unit or mora.
Relevant Questions
noun
9.
Mathematics, rational number.

Origin:
1350–1400; Middle English racional < Latin ratiōnālis, equivalent to ratiōn- (stem of ratiō) reason + -ālis -al1

rationalness, noun

rational, reasonable (see synonym study at reasonable).

2. intelligent, wise, judicious, sagacious, enlightened. 6. See reasonable.

2. stupid. 3. insane.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To trans-rational
Collins
World English Dictionary
 rational (ˈræʃənəl) —adj 1. using reason or logic in thinking out a problem 2. in accordance with the principles of logic or reason; reasonable 3. of sound mind; sane: the patient seemed quite rational 4. endowed with the capacity to reason; capable of logical thought: man is a rational being 5. maths expressible as a ratio of two integers or polynomials: a rational number; a rational function —n 6. maths a rational number [C14: from Latin ratiōnālis, from ratiōreason] 'rationally —adv 'rationalness —n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

rational
late 14c., "endowed with reason," from L. rationalis "of or belonging to reason, reasonable," from ratio (gen. rationis) "reckoning, calculation, reason" (see ratio). Rationalist "physician whose treatment is based on reason" is from 1620s; applied to a philosophical doctrine
1640s. Rationalize is first recorded 1803, "to explain, to make reasonable;" in the psychological sense of "to give an explanation that conceals true motives" it dates from 1922.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

rational ra·tion·al (rāsh'ə-nəl)

1. Having or exercising the ability to reason.

2. Influenced by reasoning rather than by emotion.

3. Of sound mind; sane.

4. Based on scientific knowledge or theory rather than practical observation.

The American Heritage® Stedman's Medical Dictionary