|
|
 |
|
|
|
|
| nappe [ nap ] (plural nappes) |
noun |
|
| Definition: |
| |
1. sheet of water: a sheet of water flowing over a dam or a spillway
|
2. sheet of rock: a large arch-shaped sheet of rock that has been forced over underlying rocks by internal stresses
|
3. mathematics part of cone: either of the two parts, or sheets, of a conical or pyramidal surface that are separated by a line through the vertex
|
| [Late 19th century. < French (see napkin)] |
|
|
|
