Word.ws English Dictionary

clack box

clack box noun: the box or chamber in which a clack valve works.

Noun

clack box (plural clack boxes)

  1. The box or chamber in which a clack valve works.
    • The connecting pipe between a locomotive injector and the boiler, through which the water is forced into the boiler against the steam pressure within, is provided with a "clack-valve," which allows the water to pass in the inward direction only and not the outward; this is housed in a "clack-box"....1946 March and April, “The Why and The Wherefore: Clack-Boxes”, in Railway Magazine, page 129
  2. (UK, obsolete, slang) A person's tongue or mouth.
  3. (UK, obsolete, slang) A garrulous person; a chatterbox.

Forms of clack box

pluralclack boxes

Questions about clack box

What does clack box mean?
Clack box means the box or chamber in which a clack valve works.
What part of speech is clack box?
Clack box is a noun.
What is the plural of clack box?
The plural of clack box is clack boxes.

Words near clack box in the dictionary

  1. clachan
  2. Clachan of Campsie
  3. clachans
  4. Clachnaharry
  5. clack
  6. clack box
  7. clack boxes
  8. clack dish
  9. clack dishes
  10. clack door
  11. clack doors

Source and license

Adapted from Wiktionary: clack box (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: “clack box.” Word.ws, https://word.ws/clack_box. Based on Wiktionary, CC BY-SA 4.0.