We found 9 dictionaries that define the word OS X:

General (4 matching dictionaries)

1. OS-X: Wordnik
2. OS X: Wiktionary
3. OS X: Dictionary.com
4. OS-X, OS X, Os x: Wikipedia, the Free Encyclopedia

Computing (2 matching dictionaries)

5. OS X: Netlingo
6. OS X: Encyclopedia

Miscellaneous (1 matching dictionary)

7. OS X: Acronym Finder

Slang (1 matching dictionary)

8. OS X: Urban Dictionary

Tech (1 matching dictionary)

9. Sweetwater Music (No longer online)

Definitions from Wiktionary (OS X) ▸ noun:  (computing, trademark) Former name of macOS; itself formerly known as Mac OS X. Similar: MACOS, Apple Mac, Macintosh, Hackintosh, Mactel, MacIntel, MacBook, ObjC, cocoa, Windows, more... Types: leopard, snow leopard, lion, mountain lion, mavericks, yosemite, el capitan, more... Phrases: mac os x, Mac OS X Leopard, Mac OS X Jaguar, Mac OS X Panther, Mac OS X Tiger, more... ▸ Words similar to OS X ▸ Usage examples for OS X ▸ Idioms related to OS X ▸ Wikipedia articles (New!) ▸ Words that often appear near OS X ▸ Rhymes of OS X ▸ Invented words related to OS X