cardhouse

noun3

1. •
   A business establishment that hosts card-playing, especially one where patrons play poker.

   • He spends six nights a week at the cardhouse. — 2003
2. •
   [before a noun] A structure of plate-like mineral deposits that rest on each other's edges.

   • He also expressed the opinion that certain sensitive clays derived their properties from the fact that the flaky minerals were arranged in an unstable “cardhouse” fabric. — 1966
3. •
   Synonym of house of cards (any sense).

   • The photographer glanced up at them over a four-storeyed cardhouse, which he had built out of crispbread. — 1977