ultrathin
adjective
ul·tra·thin
ˌəl-trə-ˈthin 
: extremely or extraordinarily thin
ultrathin phones
ultrathin fashion models
The molecules ride on the surface like a film of soap and assemble themselves into an ultrathin layer about one-millionth of an inch thick.—
Mike May
Mike MayExamples of ultrathin in a Sentence
a new generation of flat-panel TVs that were ultrathin
Recent Examples on the Web
The camera bar is also expected to appear on the iPhone 17 Air, Apple's ultrathin design set to replace the iPhone Plus brand.
—Ewan Spence, Forbes, 23 Feb. 2025
The ultrathin graphene tattoos are soft and pliable, conforming to the skin’s grooves and ridges.
—IEEE Spectrum, 3 Feb. 2025
The ultrathin laptop is powered by an Intel Core Ultra 7 258V processor, with up to 32GB of RAM and up to 1TB of SSD storage.
—Barry Collins, Forbes, 7 Jan. 2025
Yes, the brand’s stylish intimates look great on any Instagram grid, but these ultrathin thong panties will become your new favorite pair.
—Malia Griggs, Glamour, 11 Dec. 2024
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Ewan Spence, Forbes, 23 Feb. 2025
The ultrathin graphene tattoos are soft and pliable, conforming to the skin’s grooves and ridges.
—IEEE Spectrum, 3 Feb. 2025
The ultrathin laptop is powered by an Intel Core Ultra 7 258V processor, with up to 32GB of RAM and up to 1TB of SSD storage.
—Barry Collins, Forbes, 7 Jan. 2025
Yes, the brand’s stylish intimates look great on any Instagram grid, but these ultrathin thong panties will become your new favorite pair.
—Malia Griggs, Glamour, 11 Dec. 2024
See All Example Sentences for ultrathin
Cite this Entry
“Ultrathin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrathin. Accessed 13 Mar. 2025.
Copy CitationMedical Definition
ultrathin
adjective
ul·tra·thin
ˌəl-trə-ˈthin
: exceedingly thin
ultrathin sections for use in electron microscopy
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