arachnoid

  1. Adjective.  Relating to spiders.
  2. Adjective.  Relating to or resembling spider webs.
  3. Adjective.  (anatomy) Relating to the arachnoid mater, the middle layer of the meninges, the three membranes that protect the brain.
  4. Noun.  (biology) An arachnid.
  5. Noun.  (physiology) The arachnoid mater, the middle layer of the meninges, the three membranes that protect the brain.
  6. Noun.  (astronomy) A round network of fractures in the crust of Venus.

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This entry was last updated on RefTopia from its source on 3/20/2012.