We found 22 dictionaries that define the word square bracket:

General (16 matching dictionaries)

1. square bracket: Longman Dictionary of Contemporary English
2. square bracket: Merriam-Webster
3. square bracket: Oxford Learner's Dictionaries
4. square bracket: American Heritage Dictionary of the English Language
5. square bracket: Collins English Dictionary
6. square bracket: Vocabulary.com
7. square bracket: Wiktionary
8. square bracket: Infoplease Dictionary
9. square bracket: Dictionary.com
10. Square bracket: Wikipedia, the Free Encyclopedia
11. square bracket: Rhymezone
12. square bracket: FreeDictionary.org
13. square bracket: Mnemonic Dictionary
14. square bracket: TheFreeDictionary.com

Art (1 matching dictionary)

15. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Business (2 matching dictionaries)

16. square bracket: Legal dictionary
17. square bracket: Financial dictionary

Computing (1 matching dictionary)

18. square bracket: Encyclopedia

Medicine (1 matching dictionary)

19. square bracket: Medical dictionary

Science (1 matching dictionary)

20. Square Bracket: Eric Weisstein's World of Mathematics

(Note: See square_brackets as well.)

Definitions from Wiktionary (square bracket) ▸ noun:  Either of a pair of symbols, [ ], used for various purposes, e.g. to enclose text inserted or replaced by an editor, and to indicate various mathematical operations. Similar: bracket, corner bracket, angle bracket, right bracket, left bracket, round bracket, diamond bracket, corner quote, curly brace, brace, more... ▸ Words similar to square bracket ▸ Usage examples for square bracket ▸ Idioms related to square bracket ▸ Wikipedia articles (New!) ▸ Words that often appear near square bracket ▸ Rhymes of square bracket ▸ Invented words related to square bracket