fan vaulting

noun fan vaulting

• beam — If you say that someone is beaming, you mean that they have a big smile on their face because they are happy, pleased, or proud about something.
• plaster — a composition, as of lime or gypsum, sand, water, and sometimes hair or other fiber, applied in a pasty form to walls, ceilings, etc., and allowed to harden and dry.
• roof — the external upper covering of a house or other building.
• covert — Covert activities or situations are secret or hidden.
• dome — Architecture. a vault, having a circular plan and usually in the form of a portion of a sphere, so constructed as to exert an equal thrust in all directions. a domical roof or ceiling. a polygonal vault, ceiling, or roof.