Word.ws English Dictionary

downcomer

downcomer noun: a large external pipe in a water-tube boiler, carrying unheated water from the steam drum down to the water drum as part of the circulation path.

Noun

downcomer (plural downcomers)

  1. A large external pipe in a water-tube boiler, carrying unheated water from the steam drum down to the water drum as part of the circulation path.
  2. A pipe for leading the hot gases from the top of a blast furnace downward to the regenerators, boilers, etc.

Forms of downcomer

pluraldowncomers

Origin of downcomer

From down + comer.

Questions about downcomer

What does downcomer mean?
Downcomer means a large external pipe in a water-tube boiler, carrying unheated water from the steam drum down to the water drum as part of the circulation path.
What part of speech is downcomer?
Downcomer is a noun.
What is the plural of downcomer?
The plural of downcomer is downcomers.

Words near downcomer in the dictionary

  1. downcoded
  2. downcodes
  3. downcoding
  4. downcoiler
  5. downcome
  6. downcomer
  7. downcomers
  8. downcomes
  9. downcoming
  10. downconversion
  11. downconversions

Source and license

Adapted from Wiktionary: downcomer (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “downcomer.” Word.ws, https://word.ws/downcomer. Based on Wiktionary, CC BY-SA 4.0.