Sapping — Union troops digging a sap with a sap roller on Morris Island, 1863 … Wikipedia
sapping — sæp n. juice of a plant, fluid which circulates through a plant; essential body fluid (such as blood); vigor, health, vitality; fool, gullible person (Slang); deep tunnel or trench leading to an enemy s fort (Military) v. remove sap, drain sap;… … English contemporary dictionary
sapping — noun Geography undercut by water or glacial action. → sap someone of … English new terms dictionary
Sapping — ♦ Undermining, as of a castle wall. (Gies, Joseph and Francis. Life in a Medieval Castle, 226) Related terms: Mine … Medieval glossary
SAPPING — … Useful english dictionary
Groundwater sapping — Scientists believe that groundwater sapping created these gullies in Noachis Terra on Mars. NASA image … Wikipedia
basal sapping — the undercutting and retreat of a slope caused when erosion and/or weathering are concentrated at its base … Geography glossary
valley — valleylike, adj. /val ee/, n., pl. valleys. 1. an elongated depression between uplands, hills, or mountains, esp. one following the course of a stream. 2. an extensive, more or less flat, and relatively low region drained by a great river system … Universalium
Coprates quadrangle — The Coprates quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Coprates quadrangle is also referred to as MC 18 (Mars Chart 18).[1] The Coprates… … Wikipedia
Mining (military) — Explosion of the mine beneath Hawthorn Ridge Redoubt on the Western Front during World War I (July 1 1916). Photo by Ernest Brooks Mining, landmining or undermining is a siege method which has been used since antiquity against a walled city,… … Wikipedia
