distillation

noun

dis·​til·​la·​tion ˌdi-stə-ˈlā-shən How to pronounce distillation (audio)
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.
In stable operation, online process analyzers measure salt in crude, water content, total acid number, distillation curve, vapor pressure and other key quality parameters to improve efficiency, protect equipment and reduce product giveaway. Gregory Shahnovsky, Forbes.com, 26 June 2026 That could make conducting distillation attacks pointless, Anthropic suggested. Ashley Belanger, ArsTechnica, 25 June 2026 Some pastimes are distractions, some are distortions, and some few are true distillations—refining a city or a place or a community to its essence, deliciously sipped by all. Adam Gopnik, New Yorker, 21 June 2026 Modifying membrane structure Every single day, standard crude oil refining uses the thermal distillation method. Mrigakshi Dixit, Interesting Engineering, 18 June 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 29 Jun. 2026.

Kids Definition

distillation

noun
dis·​til·​la·​tion ˌdis-tə-ˈlā-shən How to pronounce distillation (audio)
: 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
dis·​til·​la·​tion ˌdis-tə-ˈlā-shən How to pronounce distillation (audio)
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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