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ultrathin

[ uhl-truh-thin ]

adjective

  1. extremely thin:

    an ultrathin wristwatch.



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Word History and Origins

Origin of ultrathin1

First recorded in 1945–50; ultra- + thin
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Example Sentences

The researchers envision the new design being made into ultrathin films or coatings and wrapped around implants to passively power electronics, using the body’s abundant glucose supply.

The researchers’ deceptively simple fabrication technique requires only three basic steps and can be scaled up to produce ultrathin loudspeakers large enough to cover the inside of an automobile or to wallpaper a room.

Made from an ultrathin and stretchy polyester-spandex blend, it vented and wicked sweat even better than the Stio Eddy, so it was the first top I reached for when the forecast called for temperatures above 100 degrees.

The stretchy polyester fabric is ultrathin and comfortable but cuts the chill just enough on cold mornings.

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