carbon fiber

American  

noun

1. a strong, stiff, thin fiber of nearly pure carbon, made by subjecting various organic raw materials to high temperatures, combined with synthetic resins to produce a strong, lightweight material used in construction of aircraft and spacecraft.

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carbon fiber Scientific  

1. An extremely strong, thin fiber, consisting of long, chainlike molecules of pure carbon that are made by charring synthetic fibers such as rayon in the absence of oxygen. Carbon fibers are used in high-strength composite materials in aircraft, automobiles, architectural structures, and in other applications where light materials capable of withstanding high stress are required.

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Example Sentences

Also on Citrini’s list of key materials are aluminum, carbon fiber, and electrical steel.

From MarketWatch • Feb. 12, 2026

The bike, made of carbon fiber and weighing about 29 pounds, had a longer range and a better battery life than her old electric scooter.

From Los Angeles Times • Feb. 6, 2026

The company claims that the technology OrthoLite has developed is superior to existing carbon fiber insoles in offering support and enhancing athletic performance.

From Barron's • Jan. 16, 2026

An elegant wainscoting of polished carbon fiber stretches across the four doors, accented with aluminum bezels and wire-thin LED lighting.

From The Wall Street Journal • Oct. 2, 2025

The controls and dashboard were black-and-gray carbon fiber except for a cherry-red start button.

From "Millionaires for the Month" by Stacey McAnulty