We found 9 dictionaries that define the word colour line:

General (8 matching dictionaries)

1. colour line: Merriam-Webster
2. colour line: Collins English Dictionary
3. colour line: Vocabulary.com
4. colour line: Dictionary.com
5. colour line: Rhymezone
6. colour line: FreeDictionary.org
7. colour line: Mnemonic Dictionary
8. colour line: TheFreeDictionary.com

Computing (1 matching dictionary)

9. colour line: Encyclopedia

(Note: See colour_lines as well.)

Definitions from WordNet (colour line) ▸ noun:  barrier preventing blacks from participating in various activities with whites Opposite: colorblindness, racial equality, integration ▸ Words similar to colour line ▸ Usage examples for colour line ▸ Idioms related to colour line ▸ Wikipedia articles (New!) ▸ Words that often appear near colour line ▸ Rhymes of colour line ▸ Invented words related to colour line