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Definition

Polyethylene; a thermoplastic polymer made from petroleum, used to make plastic bags, bottles, and packaging.

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How it's used

This term is a technical chemical name primarily used in scientific, industrial, or environmental contexts. Most Cantonese speakers will simply refer to the material as 膠 or 塑膠 in everyday life. You will rarely hear it spoken aloud outside of a classroom, a factory, or a discussion about plastic waste management.

Examples

This bottle is made of polyethylene.
Is polyethylene hard to decompose?

Common phrases

high-density polyethylene
low-density polyethylene

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector