We found 8 dictionaries that define the word simultaneous operation:

General (6 matching dictionaries)

1. simultaneous operation: Vocabulary.com
2. simultaneous operation: Dictionary.com
3. simultaneous operation: Rhymezone
4. simultaneous operation: FreeDictionary.org
5. simultaneous operation: Mnemonic Dictionary
6. simultaneous operation: TheFreeDictionary.com

Computing (1 matching dictionary)

7. simultaneous operation: Encyclopedia

Tech (1 matching dictionary)

8. Schlumberger Oilfield Glossary (No longer online)

(Note: See simultaneous_operations as well.)

Definitions from WordNet (simultaneous operation) ▸ noun:  the simultaneous execution of two or more operations ▸ Words similar to simultaneous operation ▸ Usage examples for simultaneous operation ▸ Idioms related to simultaneous operation ▸ Wikipedia articles (New!) ▸ Words that often appear near simultaneous operation ▸ Rhymes of simultaneous operation ▸ Invented words related to simultaneous operation