We found 8 dictionaries that define the word lantastic:

General (2 matching dictionaries)

1. LANtastic: Dictionary.com
2. LANtastic, Lantastic: Wikipedia, the Free Encyclopedia

Computing (3 matching dictionaries)

3. LANtastic: Free On-line Dictionary of Computing
4. LANtastic: CCI Computer
5. LANtastic: Encyclopedia

Medicine (1 matching dictionary)

6. online medical dictionary (No longer online)

Slang (2 matching dictionaries)

7. LANtastic, LANtastic: Urban Dictionary

Definitions from Wikipedia (LANtastic) ▸ noun:  a peer-to-peer local area network operating system for DOS and Microsoft Windows (and formerly OS/2). ▸ Words similar to lantastic ▸ Usage examples for lantastic ▸ Idioms related to lantastic ▸ Wikipedia articles (New!) ▸ Popular adjectives describing lantastic ▸ Words that often appear near lantastic ▸ Rhymes of lantastic ▸ Invented words related to lantastic