having part or all of the caffeine extracted: decaffeinated tea.

Origin of decaffeinated


[dee-kaf-uh-neyt, -kaf-ee-uh-]

verb (used with object), de·caf·fein·at·ed, de·caf·fein·at·ing.

to extract caffeine from: to decaffeinate coffee.

Origin of decaffeinate

First recorded in 1925–30; de- + caffein + -ate1
Related formsde·caf·fein·a·tion, nounde·caf·fein·a·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for decaffeinated

Historical Examples of decaffeinated

  • As a result of this demand, a variety of decaffeinated coffees have been placed on the market.

    All About Coffee

    William H. Ukers

British Dictionary definitions for decaffeinated



(tr) to remove all or part of the caffeine from (coffee, tea, etc)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for decaffeinated



1909 (implied in decaffeinated), from de- + caffeine + -ate (2).

Online Etymology Dictionary, © 2010 Douglas Harper