We found 5 dictionaries that define the word black line:

General (2 matching dictionaries)

1. black line: Merriam-Webster
2. Black Line: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)

3. black line: Encyclopedia

Medicine (1 matching dictionary)

4. online medical dictionary (No longer online)

Slang (1 matching dictionary)

5. black line: Urban Dictionary

Phrases: black line dental stain, Black Star Line, Black Prince-class ship of the line, more... ▸ Words similar to black line ▸ Usage examples for black line ▸ Idioms related to black line ▸ Wikipedia articles (New!) ▸ Words that often appear near black line ▸ Rhymes of black line ▸ Invented words related to black line