nappe

nappe

noun \ˈnap\

Definition of NAPPE

1

: sheet 6

2

: a large mass of rock thrust over other rocks

3

: one of the two sheets that lie on opposite sides of the vertex and together make up a cone

Origin of NAPPE

French, tablecloth, sheet, nappe, from Old French nape — more at napkin

First Known Use: 1904

Rhymes with NAPPE

cap, chap, clap, crap, flap, frap, gap, gape, hap, knap, lap, Lapp, map, nap, nape, pap, rap, sap, scrap, slap, snap, strap, tap, trap, wrap, yap, Yap, zap

nappe

noun    (Concise Encyclopedia)

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.