fen·es·tra·tion 
(fĕn′ĭ-strāshən)
(fĕn′ĭ-strāshən)n.
1. The design and placement of windows in a building.
2. An opening in the surface of a structure, as in a membrane.
3. The surgical creation of an artificial opening in a bone, as in the inner ear so as to improve or restore hearing.
- potassium bicarbonate
- potassium bitartrate
- potassium bromide
- potassium carbonate
- potassium chlorate
- potassium chloride
- potassium cyanide
- potassium dichromate
- potassium feldspar
- potassium hydroxide
- potassium iodide
- potassium muriate
- potassium nitrate
- potassium permanganate
- potassium sodium tartrate
- potassium sulfate
- potation
- potato
- potato beetle
- potato blight
- potato bug
- potato chip
- potatory
- potato skin
- potato yam