polyethylene

American  

[pol-ee-eth-uh-leen] / ˌpɒl iˈɛθ əˌlin /

noun

Chemistry.

1. a plastic polymer of ethylene used chiefly for containers, electrical insulation, and packaging.

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polyethylene British  

/ ˌpɒlɪˈɛθɪˌliːn /

noun

1. another name for polythene

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polyethylene Scientific  

/ pŏl′ē-ĕth′ə-lēn′ /

1. Any of various artificial resins consisting of many ethyl groups (CH ₂ CH ₂) joined end to end or in branched chains. Polyethylenes are easily molded and are resistant to other chemicals. They can be repeatedly softened and hardened by heating and cooling, and are used for many purposes, such as making containers, tubes, and packaging.

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Etymology

Origin of polyethylene

First recorded in 1935–40; poly- + ethylene

Example Sentences

Early findings showed that pavement containing recycled polyethylene did not release more polymers than conventional SBS pavement.

From Science Daily • Jun. 28, 2026

In March, prices for polyethylene, the most commonly used plastic globally, rose to their highest point in nearly four years, a problem for companies that need the material.

From Barron's • May 13, 2026

Alexander said that although some forms of recycled plastic, such as polyethylene, may see a temporary boost, it’s unlikely to last.

From Los Angeles Times • May 1, 2026

“We’re seeing prices go up everywhere,” he said, referring to polyethylene, a plastic that goes into detergent bottles, food packaging and many other goods.

From The Wall Street Journal • Apr. 5, 2026

Her mother put them all in the polyethylene bag, which she carried to the backyard, her steps quick, her faraway look unwavering.

From "Americanah" by Chimamanda Ngozi Adichie