Smokestack

//ˈsmoʊkˌstæk// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    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
    a large tall chimney through which combustion gases and smoke can be evacuated wordnet

Synonyms

All synonyms
chimneyfluefunnelstack

Example

More examples

"This smokestack is releasing greenhouse gases and other pollutants into the atmosphere."

Etymology

From smoke + stack.

Related phrases

smokestack industry

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.