'Stovepipe' definitions:

Definition of 'stovepipe'

noun

Chimney consisting of a metal pipe of large diameter that is used to connect a stove to a flue

noun

A man's hat with a tall crown; usually covered with silk or with beaver fur [syn: dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver]

From: GCIDE

Stovepipe \Stove"pipe`\ (st[=o]v"p[imac]p`), n. Pipe made of sheet iron in length and angular or curved pieces fitting together, -- used to connect a portable stove with a chimney flue. [1913 Webster]
Stovepipe hat, A tall silk hat with a brim, worn commonly as an item of formal dress by gentlemen in the late 1800's. [Slang, U.S.] [1913 Webster +PJC]