transformation

noun

trans·​for·​ma·​tion ˌtran(t)s-fər-ˈmā-shən How to pronounce transformation (audio)
-fȯr-
1
: an act, process, or instance of transforming or being transformed
2
: false hair worn especially by a woman to replace or supplement natural hair
3
a(1)
: the operation of changing (as by rotation or mapping) one configuration or expression into another in accordance with a mathematical rule
especially : a change of variables or coordinates in which a function of new variables or coordinates is substituted for each original variable or coordinate
(2)
: the formula that effects a transformation
c
: an operation that converts (as by insertion, deletion, or permutation) one grammatical string (such as a sentence) into another
also : a formal statement of such an operation
4
: genetic modification of a bacterium by incorporation of free DNA from another bacterial cell
also : genetic modification of a cell by the uptake and incorporation of exogenous DNA

Examples of transformation in a Sentence

The building underwent various transformations over the years. a raven-haired starlet who underwent an attention-getting transformation and showed up at the awards ceremony as a blonde
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.
There’s evidence that these kinds of transformations aren’t getting the investment that AI tools for sales and marketing have received. Jessica Coacci, Fortune, 9 Oct. 2025 This transformation, McVey cautioned, takes time to unfold. Mohammed Sergie, semafor.com, 9 Oct. 2025 These are essentially gothic works, in which bleary, nocturnal isolation opens a door to bizarre impulses and uncanny transformations. Jessica Winter, New Yorker, 8 Oct. 2025 Audrey’s transformation has struck a chord with viewers, many of whom have praised the post for shedding light on the emotional lives of animals. Melissa Fleur Afshar, MSNBC Newsweek, 8 Oct. 2025 See All Example Sentences for transformation

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of transformation was in the 15th century

Browse Nearby Words

Cite this Entry

“Transformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transformation. Accessed 10 Oct. 2025.

Kids Definition

transformation

noun
trans·​for·​ma·​tion ˌtran(t)s-fər-ˈmā-shən How to pronounce transformation (audio)
-fȯr-
: an act, process, or example of transforming or being transformed
transformational
-shnəl
-shən-ᵊl
adjective

Medical Definition

transformation

noun
trans·​for·​ma·​tion ˌtran(t)s-fər-ˈmā-shən, -fȯr- How to pronounce transformation (audio)
1
: an act, process, or instance of transforming or being transformed see malignant transformation
2
a
: genetic modification of a bacterium by incorporation of free DNA from another ruptured bacterial cell compare transduction sense 2
b
: genetic modification of a cell by the uptake and incorporation of exogenous DNA

More from Merriam-Webster on transformation

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