carpetweb
/ˈkɑrpɛtwɛb/Definitions
1. noun
A type of spider web, especially one made by a cellar spider that appears to be a flat, disc-shaped web, often found on walls, ceilings, or other surfaces, with a characteristic ‘carpet-like’ appearance.
“The old house had a carpetweb in the corner of the living room, which the children found fascinating.”