Usually means: Based on reason and logic.
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We found 42 dictionaries that define the word rational:

General (27 matching dictionaries)
  1. rational: Merriam-Webster.com
  2. rational: Oxford Learner's Dictionaries
  3. rational: American Heritage Dictionary of the English Language
  4. rational: Collins English Dictionary
  5. rational: Vocabulary.com
  6. Rational, rational: Wordnik
  7. rational: Cambridge Advanced Learner's Dictionary
  8. rational: Wiktionary
  9. rational: Webster's New World College Dictionary, 4th Ed.
  10. rational: The Wordsmyth English Dictionary-Thesaurus
  11. rational: Infoplease Dictionary
  12. rational: Dictionary.com
  13. rational: Online Etymology Dictionary
  14. rational: Cambridge Essential American English Dictionary
  15. RationaL (rapper), Rational (disambiguation), Rational: Wikipedia, the Free Encyclopedia
  16. Rational: Online Plain Text English Dictionary
  17. rational: Webster's Revised Unabridged, 1913 Edition
  18. rational: Rhymezone
  19. rational, rational: AllWords.com Multi-Lingual Dictionary
  20. rational: Webster's 1828 Dictionary
  21. rational: Free Dictionary
  22. rational: Mnemonic Dictionary
  23. rational: LookWAYup Translating Dictionary/Thesaurus
  24. rational: Dictionary/thesaurus
  25. rational: Wikimedia Commons US English Pronunciations

Art (2 matching dictionaries)
  1. rational: ArtLex Lexicon of Visual Art Terminology
  2. The Organon: A Conceptually Indexed Dictionary (by Genus and Differentia) (No longer online)

Business (4 matching dictionaries)
  1. Glossary of Legal Terms (No longer online)
  2. rational: Glossary of research economics
  3. rational: Legal dictionary
  4. BusinessDictionary.com (No longer online)

Computing (2 matching dictionaries)
  1. rational: Free On-line Dictionary of Computing
  2. rational: Encyclopedia

Medicine (3 matching dictionaries)
  1. Dorland's Illustrated Medical Dictionary (No longer online)
  2. online medical dictionary (No longer online)
  3. rational: Medical dictionary

Religion (1 matching dictionary)
  1. Irivng Hexham's Concise Dictionary of Religion (No longer online)

Science (2 matching dictionaries)
  1. rational: PlanetMath Encyclopedia
  2. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

Slang (1 matching dictionary)
  1. rational: Urban Dictionary

(Note: See rationally as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
adjective:  Capable of reasoning.
adjective:  Logically sound; not self-contradictory or otherwise absurd.
adjective:  (of a person or personal characteristics) Healthy or balanced intellectually; exhibiting reasonableness.
adjective:  (mathematics, arithmetic, number theory, not comparable) Of a number, capable of being expressed as the ratio of two integers.
adjective:  (mathematics, arithmetic, not comparable) Of an algebraic expression, capable of being expressed as the ratio of two polynomials.
adjective:  (chemistry) Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.
adjective:  (physics) Expressing a physical object.
noun:  (mathematics) A rational number: a number that can be expressed as the quotient of two integers.
noun:  (historical) The breastplate worn by Israelite high priests.

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    slate gray,     navy blue,     charcoal,     steel blue,     taupe,     beige,     olive green,     forest green,     burgundy,     maroon



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