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We found 11 dictionaries with English definitions that include the word trackballs:
Click on the first link on a line below to go directly to a page where "trackballs" is defined.

General (9 matching dictionaries)

1. trackballs: Merriam-Webster.com [home, info]
2. trackballs: Collins English Dictionary [home, info]
3. trackballs: Vocabulary.com [home, info]
4. Trackballs, trackballs: Wordnik [home, info]
5. trackballs: Cambridge Advanced Learner's Dictionary [home, info]
6. trackballs: Wiktionary [home, info]
7. trackballs: Dictionary.com [home, info]
8. Trackballs: Wikipedia, the Free Encyclopedia [home, info]
9. trackballs: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

10. trackballs: Encyclopedia [home, info]

Medicine (1 matching dictionary)

11. trackballs: Medical dictionary [home, info]

(Note: See trackball for more definitions.)

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 trackball ▸ Words similar to trackballs ▸ Usage examples for trackballs ▸ Popular adjectives describing trackballs ▸ Words that often appear near trackballs ▸ Rhymes of trackballs ▸ Invented words related to trackballs