We found 3 dictionaries that define the word ground colour:

General (2 matching dictionaries)

1. ground colour: Collins English Dictionary
2. ground-colour: Wordnik

Science (1 matching dictionary)

3. Bird On! (No longer online)

▸ Words similar to ground colour ▸ Usage examples for ground colour ▸ Idioms related to ground colour ▸ Wikipedia articles (New!) ▸ Words that often appear near ground colour ▸ Rhymes of ground colour ▸ Invented words related to ground colour