Word.ws English Dictionary

decaffeination

UK/diːˌkæfiːˈneɪʃən/

decaffeination noun: the removal of caffeine.

Noun

decaffeination (uncountable)

  1. The removal of caffeine.
    • While Karson and I rested under a tree, I thought of all the things I’d tried, without success, to quell my fears: extreme exercise, decaffeination, deep breathing, blue-green algae.2009 September 20, Victor Lodato, “Psychic Surgery”, in New York Times

Origin of decaffeination

From de- + caffeine + -ation.

Questions about decaffeination

What does decaffeination mean?
Decaffeination means the removal of caffeine.
What part of speech is decaffeination?
Decaffeination is a noun.
How do you pronounce decaffeination?
Decaffeination is pronounced /diːˌkæfiːˈneɪʃən/ (UK).

Words near decaffeination in the dictionary

  1. decaffeinate
  2. decaffeinated
  3. decaffeinateds
  4. decaffeinates
  5. decaffeinating
  6. decaffeination
  7. decaffeined
  8. decaffeinization
  9. decaffeinize
  10. decaffeinized
  11. decaffeinizes

Source and license

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