transformation

noun

trans·​for·​ma·​tion ˌtran(t)s-fər-ˈmā-shən 

-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

b

: function sense 5a

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

Synonyms

• changeover
• conversion
• metamorphosis
• transfiguration

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

That’s an unsurprising position for a company that has long prided itself on its machine-learning systems, which power many of its recommendations, and has framed its product evolution as a story of AI transformation. —Liz Pelly, Harper's Magazine, 2 Jan. 2025

Successful institutions approach this as a gradual transformation: 1. —Adam Ennamli, Forbes, 2 Jan. 2025

Things kick off with Venus entering Pisces on Jan. 2, activating your eighth house of intimacy, shared resources and transformation. —Valerie Mesa, People.com, 1 Jan. 2025

Yet a closer examination suggests that Syria's transformation represents a profound strategic challenge for Israel—one that the Jewish state is now scrambling to address. —Paul Du Quenoy, Newsweek, 1 Jan. 2025

Word History

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing transformation

• linear transformation
• self-transformation
• topological transformation

Kids Definition

transformation

noun

trans·​for·​ma·​tion ˌtran(t)s-fər-ˈmā-shən 

-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- 

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