- The profile of a body of water flowing over an obstruction in a vertical drop.
- (hydraulics) Nappe, the underside of which is not in contact with the overflow structure and is at ambient atmospheric pressure.
- (geology) A sheet-like mass of rock that has been folded over adjacent strata.
- (mathematics) Either of the two parts of a double cone.
- (cooking) 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."