thin film

noun

: a very thin layer of a substance on a supporting material
especially : a coating (as of a semiconductor) that is deposited in a layer one atom or one molecule thick

Examples of thin film 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.
That thin film is what makes people either slip or glide smoothly across (in the case of an ice-skating rink). Miriam Fauzia, Dallas Morning News, 26 Jan. 2026 The final layer is a thin film of indium gallium arsenide that supercharges electron flow. Mrigakshi Dixit, Interesting Engineering, 14 Jan. 2026 His company, Echo, sidesteps the problem, using not a chip with probes, but a thin film that sits on the brain without penetrating it. Jeffrey Kluger, Time, 6 Nov. 2025 Cook, stirring constantly using a wooden spoon or stiff rubber spatula, until mixture forms a ball and bottom of pan has developed a thin film, about 2 minutes. Melinda Salchert, Southern Living, 24 Oct. 2025 See All Example Sentences for thin film

Word History

First Known Use

1944, in the meaning defined above

Time Traveler
The first known use of thin film was in 1944

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Cite this Entry

“Thin film.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thin%20film. Accessed 27 Jan. 2026.

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