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Look up arachnid in Wiktionary, the free dictionary.
An arachnid is a member of a class of joint-legged invertebrate animals.
Arachnid may also refer to:
- Arachnid Solitaire or Spider, a solitaire card game
- Arachnid or Bugs (Starship Troopers), a member of a fictional alien race in Starship Troopers by Robert A. Heinlein
- Arachnid (film), a 2001 American horror film