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1. (geology) a sheet-like mass of rock that has been folded over adjacent strata
    
2. The profile of the sheet of water flowing over a damn or similar obstruction
    
3. (geometry) half of a double cone
    
4. (cooking) thickness of a sauce when it will coat the back of a spoon
    
5. Sheet; surface; all that portion of a surface that is continuous in such a way that it is possible to pass from any one point of the portion to any other point of the portion without leaving the surface

Sounds like: nap

Derived forms: nappes

Encyclopedia: Nappe