smokestack

Meanings

1. 1
   noun

   A conduit or group of conduits atop a structure allowing smoke to flow out, as on a steam locomotive, ship, factory, or power plant using fossil fuels.

   With its long tapered cowcatcher, massive headlamp and enormous diamond smokestack behind, wagon-top boiler, high running-plate above the driving-wheels reached from a front door in the square side-window cab, cylinders with slide valves mounted on top, and double bogie tender, General in its present form is typical of much earlier American locomotive practice.

2. 2
   noun

   a large tall chimney through which combustion gases and smoke can be evacuated

Etymology

From smoke + stack.