We found 31 dictionaries that define the word simultaneous:

General (27 matching dictionaries)

1. simultaneous: Longman Dictionary of Contemporary English
2. simultaneous: Merriam-Webster
3. simultaneous: Oxford Learner's Dictionaries
4. simultaneous: American Heritage Dictionary of the English Language
5. simultaneous: Collins English Dictionary
6. simultaneous: Vocabulary.com
7. Simultaneous, simultaneous: Wordnik
8. simultaneous: Cambridge Advanced Learner's Dictionary
9. simultaneous: Wiktionary
10. simultaneous: Webster's New World College Dictionary, 4th Ed.
11. simultaneous: The Wordsmyth English Dictionary-Thesaurus
12. simultaneous: Infoplease Dictionary
13. simultaneous: Dictionary.com
14. simultaneous: Online Etymology Dictionary
15. simultaneous: Cambridge Essential American English Dictionary
16. Simultaneous: Wikipedia, the Free Encyclopedia
17. Simultaneous: Online Plain Text English Dictionary
18. simultaneous: Webster's Revised Unabridged, 1913 Edition
19. simultaneous: Rhymezone
20. simultaneous: AllWords.com Multi-Lingual Dictionary
21. simultaneous: Webster's 1828 Dictionary
22. simultaneous: FreeDictionary.org
23. simultaneous: The Phrontistery - A Dictionary of Obscure Words
24. simultaneous: Mnemonic Dictionary
25. simultaneous: TheFreeDictionary.com

Business (1 matching dictionary)

26. simultaneous: Legal dictionary

Computing (1 matching dictionary)

27. simultaneous: Encyclopedia

Medicine (1 matching dictionary)

28. online medical dictionary (No longer online)

Science (1 matching dictionary)

29. simultaneous: MATH SPOKEN HERE!

(Note: See simultaneity as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Happening at the same moment. ▸ adjective:  (mathematics, of a set of equations) To be solved for the same values of variables. Similar: concurrent, coincident, coinciding, synchronic, synchronal, synchronous, coincidental, at the same time, cooccurring, multiple, more... Opposite: sequential, consecutive, successive, staggered, non-simultaneous Phrases: simultaneous equations, simultaneous equation, simultaneous translation, simultaneous operation, simultaneous contrast, more... Colors:     blue,     green,     yellow,     red,     orange, more... ▸ Word origin ▸ Words similar to simultaneous ▸ Usage examples for simultaneous ▸ Idioms related to simultaneous ▸ Wikipedia articles (New!) ▸ Popular nouns described by simultaneous ▸ Words that often appear near simultaneous ▸ Rhymes of simultaneous ▸ Invented words related to simultaneous