We found 24 dictionaries that define the word space bar:

General (19 matching dictionaries)

1. space bar: Longman Dictionary of Contemporary English
2. space bar: Merriam-Webster
3. space bar: Oxford Learner's Dictionaries
4. space bar: American Heritage Dictionary of the English Language
5. space-bar, space-bar: Collins English Dictionary
6. space bar: Vocabulary.com
7. space bar: Wordnik
8. space bar: Wiktionary
9. space bar: The Wordsmyth English Dictionary-Thesaurus
10. space bar: Infoplease Dictionary
11. space bar: Dictionary.com
12. Space bar, The Space Bar: Wikipedia, the Free Encyclopedia
13. space bar: Rhymezone
14. space-bar: AllWords.com Multi-Lingual Dictionary
15. space bar: FreeDictionary.org
16. space bar: Mnemonic Dictionary
17. space-bar, space bar: TheFreeDictionary.com

Computing (3 matching dictionaries)

18. space bar: Free On-line Dictionary of Computing
19. space bar: CCI Computer
20. space bar: Encyclopedia

Medicine (1 matching dictionary)

21. online medical dictionary (No longer online)

Slang (1 matching dictionary)

22. space bar: Urban Dictionary

(Note: See space_bars as well.)

Definitions from Wiktionary (space bar) ▸ noun:  (computing) A key, in the shape of a bar, near the bottom of a keyboard, that generates a space character when pressed. Similar: spacebar, blank, broken bar, backspace, non-breaking space, dead key, space-cadet keyboard, horizontal bar, meta key, white space, more... Opposite: backspace, delete, erase Phrases: Space Aliens Grill & Bar, more... Adjectives: home, alt, twisty, key, pretravel, qwerty, selectable, marquee, tabbed, collapsible, clickable ▸ Words similar to space bar ▸ Usage examples for space bar ▸ Idioms related to space bar ▸ Wikipedia articles (New!) ▸ Words that often appear near space bar ▸ Rhymes of space bar ▸ Invented words related to space bar