nappe

listen to the pronunciation of nappe
الإنجليزية - الإنجليزية
Nappe, the underside of which is not in contact with the overflow structure and is at ambient atmospheric pressure
a sheet-like mass of rock that has been carried from its original position
The ability of a liquid to "coat the back of a spoon" or the act of coating a food

to nappe a leg of lamb with glaze.

the profile of a body of water flowing over an obstruction in a vertical drop
either of the two parts of a double cone
In geology, a large body or sheet of rock that has been moved by faulting or folding a distance of about 1 mi (1.5 km) or more from its original position. A nappe may be the hanging wall of a low-angle thrust fault (a fracture in the rocks of the Earth's crust caused by contraction), or it may be a large recumbent fold (i.e., an undulation in the stratified rocks that have an essentially horizontal axial plane); both processes position older rocks over younger rocks
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
Thus, some hyperboloids have one nappe, and some have two
nappe
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