We found 17 dictionaries that define the word upper bound:

General (11 matching dictionaries)

1. upper bound: American Heritage Dictionary of the English Language
2. upper bound: Vocabulary.com
3. upper-bound: Wordnik
4. upper bound: Infoplease Dictionary
5. upper bound: Dictionary.com
6. Upper bound: Wikipedia, the Free Encyclopedia
7. upper bound: Rhymezone
8. upper bound: FreeDictionary.org
9. upper bound: Mnemonic Dictionary
10. upper bound: TheFreeDictionary.com
11. upper bound: Wiktionary

Computing (2 matching dictionaries)

12. upper bound: Free On-line Dictionary of Computing
13. upper bound: Encyclopedia

Medicine (1 matching dictionary)

14. online medical dictionary (No longer online)

Science (3 matching dictionaries)

15. Upper Bound: Eric Weisstein's World of Mathematics
16. upper bound: PlanetMath Encyclopedia
17. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

(Note: See upper_bounds as well.)

Definitions from Wiktionary (upper bound) ▸ noun:  (mathematics) A value that is greater than or equal to every element of a given set of values. Opposite: lower bound, minimum, floor Phrases: least upper bound, least upper bound property, more... ▸ Words similar to upper bound ▸ Usage examples for upper bound ▸ Idioms related to upper bound ▸ Wikipedia articles (New!) ▸ Words that often appear near upper bound ▸ Rhymes of upper bound ▸ Invented words related to upper bound