
1) Half of a cone 2) Section of a cone 3) Sheet of rock 4) Sheetlike body of rock 5) Water over the dam
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https://www.crosswordclues.com/clue/nappe
[water] The term Nappe when used in relation to hydro-engineering refers to the sheet of water over-topping a dam. It is an important issue in dam construction because unless air can be introduced into the nappe, the vibration of the water can lead to dam failure, as occurred in the Vajont Dam disaster in Italy in 1963. Nappe vibration can ...
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http://en.wikipedia.org/wiki/Nappe_(water)

ability of a liquid to coat the back of a spoon
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http://phrontistery.info/n.html

sheet of water flowing over a weir
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http://phrontistery.info/n.html

• (n.) 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. • (n.) Sheet; surface; all that portion of a surface that is continuou...
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http://thinkexist.com/dictionary/meaning/nappe/

in geology, large body or sheet of rock that has been moved a distance of about 2 km (1.2 miles) or more from its original position by faulting or ... [4 related articles]
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http://www.britannica.com/eb/a-z/n/7

<geometry> 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. ... Origin: F. Nappe cloth, sheet. See Napery. ... Source: Websters Di...
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http://www.encyclo.co.uk/local/20973

A large slab of earth's surface that has been moved in a horizontal or near horizontal direction ove
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http://www.encyclo.co.uk/local/22392
Nappe noun [ French
nappe cloth, sheet. See
Napery .]
(Geom.) 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 hyperbo...
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http://www.encyclo.co.uk/webster/N/3

Faulted and overturned folds.
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http://www.evcforum.net/WebPages/Glossary_Geology.html

covered, as with a sauce.
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http://www.patriciawells.com/glossary/

A mass of rock that has been forced over another rock mass, typically on a low angle thrust fault plane.
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http://www.scientificpsychic.com/etc/geology-glossary.html

covered; as with a sauce
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http://www.slowtrav.com/france/restaurants/glossary.htm

A sheet of rock that has moved over a large horizontal distance by thrust faulting, recumbent folding, or both, so that it lies on rocks of markedly different age or lithologic character.
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https://www.encyclo.co.uk/local/22327

a large mass of rock thrust a considerable distance along a nearly horizontal fault plane or in an overturned anticlinal fold. · one of the two equal sections of a cone.
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https://www.infoplease.com/dictionary/nappe
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