1
a
: the process of purifying a liquid by successive evaporation and condensation
b
: a process like distillation
gradual distillation of the truth
also : an instance of such distilling
2

Examples of distillation in a Sentence

Recent Examples on the Web
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After distillation, the tequila was aged for a minimum of three years in new American oak barrels with medium and high char levels, as well as in French oak casks that were previously used to age Amarone wine, a dry red wine from Italy. Jonah Flicker, Robb Report, 12 Aug. 2026 Anthropic and OpenAI have accused Chinese open-weight model makers of large-scale, unauthorized distillation, a technique used to copy proprietary AI models. Christopher K. Tong, The Conversation, 12 Aug. 2026 Anthropic earlier this year accused China’s DeepSeek of using distillation. Kelvin Chan, Fortune, 11 Aug. 2026 While Vapoura’s molasses derives from sugar cane produced in Mauritius, the preparation, fermentation, distillation, maturation, blending and bottling all happen in England. Lela London, Forbes.com, 10 Aug. 2026 See All Example Sentences for distillation

Word History

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of distillation was in the 14th century

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Cite this Entry

“Distillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/distillation. Accessed 17 Aug. 2026.

Kids Definition

distillation

noun
: a process of heating a liquid or solid until it sends off a vapor and then cooling the vapor until it becomes liquid

Medical Definition

distillation

noun
1
: a process that consists of driving gas or vapor from liquids or solids by heating and condensing to liquid products and that is used especially for purification, fractionation, or the formation of new substances
2
: something distilled

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