Arachnoid 598099 194122705 2008-02-26T07:11:46Z Clarityfiend 949717 tidied up; emphasized main meaning The word '''Arachnoid''' means pertaining to or resembling an [[arachnid]] or [[spider]]. It may also refer to: * [[Arachnoid mater]], one of the three layers of the meninges, a system of membranes that contain the central nervous system. * [[Arachnoid (astrogeology)]], a geological structure resembling a spider web, found only on the planet Venus {{disambig}}