1 a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
3 a piece of metal covered by leather with a flexible handle; used for hitting people [syn: blackjack, cosh]
1 deplete; "exhaust one's savings"; "We quickly played out our strength" [syn: run down, exhaust, play out, tire]
- present participle of sap
For the tactic of tunneling under an enemy’s works see Mining (military).
Sapping is a term used in siege operations. Any trench excavated under defensive musket or artillery fire that was intended to advance a besieging army's position in relation to the works of an attacked fortification was referred to as a sap. Saps of approach were excavated by brigades of trained sappers or instructed troops of the line who advanced their sap under cover of a sap roller or mantlet by forming a parapet on the engaged side of the trench one gabion at a time and filling it with earth taken from the trench.
sapping in French: Sape
sapping in Russian: Сапа