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.
Apple has used the technology for many years on a number of products, including on various iPhone models to create a durable thin film on the casing to minimize scratching and other damage. Ewan Spence, Forbes.com, 7 Aug. 2026 Some reported magnetic order, unusual Hall effects, and efficient spin-charge conversion, while others found no evidence of magnetism in bulk crystals or relaxed thin films. Rupendra Brahambhatt, Interesting Engineering, 2 Aug. 2026 Quickly stir until most of the flour is absorbed, then cook, stirring vigorously and breaking up pockets of dry flour as needed, until a thin film forms on bottom and sides of pan and dough comes together into a single mass, 2–3 minutes. Jesse Szewczyk, Bon Appetit Magazine, 1 Aug. 2026 For instance, in 2018, Ristroph and colleagues fine-tuned the recipe for the perfect bubble based on experiments with soapy thin films. Jennifer Ouellette, ArsTechnica, 13 July 2026 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

Browse Nearby Words

Cite this Entry

“Thin film.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thin%20film. Accessed 11 Aug. 2026.

More from Merriam-Webster on thin film

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!