We found 6 dictionaries that define the word opacus:

General (2 matching dictionaries)

1. opacus: Infoplease Dictionary
2. opacus: Dictionary.com

Computing (1 matching dictionary)

3. opacus: Encyclopedia

Science (1 matching dictionary)

4. opacus: Dictionary of Botanical Epithets

Tech (1 matching dictionary)

5. Glossary of Meteorology (No longer online)

Definitions from Wikipedia (Opacus) ▸ noun:  a cloud variety that is found in stratocumulus, altocumulus, altostratus, and stratus cloud types. ▸ Words similar to opacus ▸ Usage examples for opacus ▸ Idioms related to opacus ▸ Wikipedia articles (New!) ▸ Popular adjectives describing opacus ▸ Words that often appear near opacus ▸ Rhymes of opacus ▸ Invented words related to opacus