We found 22 dictionaries that define the word irrational number:

General (12 matching dictionaries)

1. irrational number: Merriam-Webster
2. irrational number: American Heritage Dictionary of the English Language
3. irrational number: Collins English Dictionary
4. irrational number: Vocabulary.com
5. irrational number: Wiktionary
6. irrational number: Infoplease Dictionary
7. irrational number: Dictionary.com
8. Irrational number: Wikipedia, the Free Encyclopedia
9. irrational number: Rhymezone
10. irrational number: FreeDictionary.org
11. irrational number: Mnemonic Dictionary
12. irrational number: TheFreeDictionary.com

Computing (3 matching dictionaries)

13. irrational number: Free On-line Dictionary of Computing
14. irrational number: CCI Computer
15. irrational number: Encyclopedia

Medicine (1 matching dictionary)

16. online medical dictionary (No longer online)

Science (5 matching dictionaries)

17. Irrational Number: Eric Weisstein's World of Mathematics
18. irrational number: MATH SPOKEN HERE!
19. The Computational Beauty of Nature (No longer online)
20. irrational number: PlanetMath Encyclopedia
21. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

Slang (1 matching dictionary)

22. irrational number: Urban Dictionary

(Note: See irrational_numbers as well.)

Definitions from Wiktionary (irrational number) ▸ noun:  (mathematics) Any real number that cannot be expressed as a ratio of two integers. Similar: rational number, rational, numeric, real number, transcendental number, imaginary, nonreal, integer, whole number, hyperreal number, more... Opposite: rational number, real number, whole number, integer Types: square root of 2, square root of 3, cube root of 2, cube root of 3, golden ratio, e, more... Adjectives: abundant, coprime, pseudoprime, relatively prime, semiprime, nth, multiple, convergent, divisible, real, aliquant ▸ Words similar to irrational number ▸ Usage examples for irrational number ▸ Idioms related to irrational number ▸ Wikipedia articles (New!) ▸ Words that often appear near irrational number ▸ Rhymes of irrational number ▸ Invented words related to irrational number