Definitionen
1.NounSheet-metal tubing used as a chimney for a stove or furnace.
2.NounA channel for information which is compartmentalized in such a manner that some parties who might be interested in its use or able to make use of it are restricted from accessing it.
3.NounA stovepipe hat.
4.NounA type of malfunction affecting breechloading firearms, where a spent cartridge casing fails to eject completely, instead becoming stuck in the firearm's ejection port, usually oriented vertically or nearly so.
5.NounA trench mortar such as the Stokes mortar.
6.VerbTo collect or store (information) in a compartmentalized manner, so that some parties who might be interested in its use or able to make use of it are restricted from accessing it.
7.VerbOf a cartridge case, to become wedged vertically in the ejection port of a breechloading firearm, rather than ejecting completely from the weapon.