We found 2 dictionaries that define the word black agate:

Computing (1 matching dictionary)

1. black agate: Encyclopedia

Science (1 matching dictionary)

2. Agate Lexicon (No longer online)

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