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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But according to the brand, some rye backset was incorporated into its production, meaning some of the liquid left over from a previous distillation was added to this batch of whiskey. Jonah Flicker, Robb Report, 16 Sep. 2026 Washington, as well as OpenAI and Anthropic, have alleged that Chinese companies stole American intellectual property by training their models on the outputs of frontier US models, a process known as distillation in the industry. John Liu, CNN Money, 14 Sep. 2026 Dangote’s plant is currently the largest one in the world that uses a single crude distillation unit. Alexander Onukwue, semafor.com, 11 Sep. 2026 Critics have pushed back on Anthropic and OpenAI's distillation complaints because much of the data used to train these AI models may be covered under copyright law, which Tan highlighted. Kate Rooney,isabel O'Brien, CNBC, 11 Sep. 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

Browse Nearby Words

Cite this Entry

“Distillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/distillation. Accessed 19 Sep. 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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