# polymer

/ˈpɑɫəmɝ/ (US) · /pˈɒlɪmɐ/ (UK)

Source: https://englishreference.com/word/polymer
Updated: 2026-06-20

## Senses

### 1. chemical structure

noun · CEFR C1 · Technical

a very large molecule made of many small, repeating units joined together.

For teachers: A macromolecule composed of many repeating subunits, known as monomers, which are chemically bonded in a chain or network.

- DNA is a natural polymer that carries all the genetic information for living things.
- The scientist explained how the individual monomers link together during polymerization to create a stable, long-chain polymer.

Usage: Often used as a countable noun when referring to specific types of molecules.

### 2. synthetic material

noun · CEFR C1 · Technical

a material made from these molecules, such as plastic or rubber.

For teachers: A synthetic or natural material consisting of polymer molecules, valued for its durability and flexibility.

- This new polymer is much stronger and lighter than the plastic we used before.
- Engineers are developing a biodegradable polymer to replace traditional plastics in food packaging and reduce environmental waste.

Usage: Can be used as an uncountable noun when referring to the substance in general.

## Examples

- Plastic is a common type of synthetic polymer.
- Scientists are developing a new polymer that breaks down naturally in the ocean to reduce pollution.
- The unique properties of this specific polymer, including its high tensile strength and thermal resistance, make it an ideal candidate for aerospace engineering applications.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.