ultrathin

[uhl-truh-thin]

adjective

1. extremely thin.

   an ultrathin wristwatch.

Word History and Origins

Origin of ultrathin¹

First recorded in 1945–50; ultra- + thin

Example Sentences

Biomedical engineers at Duke University have developed a silk-based, ultrathin membrane that can be used in organ-on-a-chip models to better mimic the natural environment of cells and tissues within the body.

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They observed that these cells were able to send signals across the ultrathin membrane, which helped the cells differentiate into glomerular cells, podocytes and vascular endothelial cells.

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Metalenses are ultrathin optical devices -- often just a fraction of a millimeter thick -- that use nanostructures to manipulate light.

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Apple had intended the ad to send the opposite message, that its ultrathin iPad Pro could power an array of creative activities that previously required individual tools.

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Or an unpleasant sight you can’t unsee, like the new Apple ultrathin iPad ad.

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