decaffeination

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UK/diːˌkæfiːˈneɪʃən/

noun

The removal of caffeine.

Scrabble 23
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Meanings

noundecaffeination (uncountable)
  1. uncountableThe 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

Synonyms & antonyms

Also see
decaffeinization

Origin

From de- + caffeine + -ation.

Full word history & related roots →
Cite this entry
APA

decaffeination. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/decaffeination

MLA

“decaffeination.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/decaffeination. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “decaffeination,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/decaffeination.

Source: decaffeination on Wiktionary, CC BY-SA 4.0.