STOVEPIPE
stovepipe
(noun) chimney consisting of a metal pipe of large diameter that is used to connect a stove to a flue
Source: WordNet® 3.1
Etymology
Noun
stovepipe (plural stovepipes)
Sheet-metal tubing used as a chimney for a stove or furnace.
A channel for information which is compartmentalized in such a manner that some parties who might be interested in its use or be able to utilize it are restricted from accessing it.
Verb
stovepipe (third-person singular simple present stovepipes, present participle stovepiping, simple past and past participle stovepiped)
To collect or store (information) in a compartmentalized manner, so that some parties who might be interested in its use or be able to utilize it are restricted from accessing it.
Source: Wiktionary
Stove"pipe`, n.
Definition: Pipe made of sheet iron in length and angular or curved pieces
fitting together, -- used to connect a portable stove with a chimney
flue. Stovepipe hat, the common tall silk hat. [Slang, U.S.]
Source: Webster’s Unabridged Dictionary 1913 Edition