How to Use preform in a Sentence
-
It is preformed vitamin A (retinol) and is stored in our livers.
—
Sheah Rarback,
Miami Herald,
12 Mar. 2026
-
Publics are made and maintained, not discovered preformed, like rock formations.
—
Becca Rothfeld,
New Yorker,
10 Feb. 2026
-
The necropsy was preformed by veterinary pathologists at the San Diego Zoo Wildlife Alliance.
—
Laura Baisas,
Popular Science,
15 Oct. 2026
-
The Puerto Rican singer, rapper and songwriter, Bad Bunny preformed at the Super Bowl halftime show in 2026.
—
Tiffany Acosta,
AZCentral.com,
9 Feb. 2026
-
Related Stories The film centers on 12-year-old Janna, who embarks on a journey toward Mecca to preform Hajj with her strict grandmother Sitti and rebellious 18-year-old sister Sarah.
—
Leo Barraclough,
Variety,
25 Aug. 2025
-
This permits us scientists to reliably pull fiber from the preform rod that already has the core and clad built into it.
—
John Ballato,
The Conversation,
24 Mar. 2026
-
This preform is then heated and stretched, much like molten plastic, to produce thin fibers that retain the same intricate internal structure.
—
Neetika Walter,
Interesting Engineering,
3 Nov. 2025
-
Think of pulling on a wad of gum in your mouth – that thin strand is like the fiber, except scientists slowly lower the big preform into the furnace and pull out the small fiber quickly.
—
John Ballato,
The Conversation,
24 Mar. 2026
-
In contrast, the Southampton team starts with a larger glass preform about 20 centimeters wide, with the hollow channels already built in.
—
Neetika Walter,
Interesting Engineering,
3 Sep. 2025
-
To convert the solid preforms into fiber, workers load them into multi-story draw towers where they are heated and pulled down to 125 microns in diameter — roughly the width of a human hair.
—
Charlotte Observer,
15 Sep. 2026
-
Analysts point out that manufacturing optical fiber preforms requires extremely advanced production technology, and adding new capacity typically takes between one and a half to two years.
—
CNBC,
19 May 2026
-
The team has already drawn more than 120 m (394 ft) of the unusual fiber from a single experimental preform, demonstrating its manufacturability.
—
Pawel Maniewski,
New Atlas,
2 Sep. 2026
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'preform.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Last Updated:
