Arachnoid

Arachnoid may refer to:

• Relating to arachnids
• Arachnoid (astrogeology), a geological structure found only on the planet Venus
• Arachnoid (botany), referring to organs with a cobwebby exterior appearance
• Arachnoid granulation, small protrusions of the arachnoid mater
• Arachnoid mater, a layer of the meninges, membranes that contain the central nervous system

• Arkanoid, an arcade game