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We found 30 dictionaries with English definitions that include the word trackball:
Click on the first link on a line below to go directly to a page where "trackball" is defined.

General (20 matching dictionaries)

1. trackball: Merriam-Webster.com [home, info]
2. trackball: Oxford Dictionaries [home, info]
3. trackball: American Heritage Dictionary of the English Language [home, info]
4. trackball: Collins English Dictionary [home, info]
5. trackball: Vocabulary.com [home, info]
6. trackball: Macmillan Dictionary [home, info]
7. Trackball, trackball: Wordnik [home, info]
8. trackball: Cambridge Advanced Learner's Dictionary [home, info]
9. trackball: Wiktionary [home, info]
10. trackball: Webster's New World College Dictionary, 4th Ed. [home, info]
11. trackball: Infoplease Dictionary [home, info]
12. trackball: Dictionary.com [home, info]
13. Trackball: Wikipedia, the Free Encyclopedia [home, info]
14. trackball: Rhymezone [home, info]
15. trackball: Free Dictionary [home, info]
16. trackball: Mnemonic Dictionary [home, info]
17. trackball: LookWAYup Translating Dictionary/Thesaurus [home, info]
18. trackball: Dictionary/thesaurus [home, info]

Art (1 matching dictionary)

19. Trackball: Multimedia Glossary [home, info]

Computing (5 matching dictionaries)

20. trackball: Netlingo [home, info]
21. Trackball: CCI Computer [home, info]
22. trackball: Webopedia [home, info]
23. trackball: I T Glossary [home, info]
24. trackball: Encyclopedia [home, info]

Medicine (1 matching dictionary)

25. trackball: Medical dictionary [home, info]

Slang (1 matching dictionary)

26. Trackball: Urban Dictionary [home, info]

Tech (2 matching dictionaries)

27. Trackball: Glossary of video terms [home, info]
28. Trackball: Sweetwater Music [home, info]

(Note: See trackballs for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (trackball) ▸ noun:  an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen ("A trackball is essentially an upside-down mouse") ▸ Also see trackballs ▸ Words similar to trackball ▸ Usage examples for trackball ▸ Popular adjectives describing trackball ▸ Words that often appear near trackball ▸ Rhymes of trackball ▸ Invented words related to trackball