polythene
C2Pronunciation
UK
- /pˈɒlɪθˌiːn/
US
- /ˈpɑliθin/countableuncountablenoun
- /ˈpɑləθin/countableuncountablenoun
- /ˈpɑlɪθin/countableuncountablenoun
Description
- plastic material
- thin plastic film
- used for bags and wrapping
Polythene, also spelled "polyethylene," is a common plastic used for bags, wrapping, bottles, and many other everyday things. It is light, flexible, and water-resistant, which is why it is used so often in packaging and storage.
You might notice it in a shopping bag, a rubbish bag, or a sheet of plastic covering something outdoors. For example, you could say, "The food was wrapped in polythene," or, "The plants were covered with polythene to keep off the rain." Most types do not break down easily, so recycling it matters.
Polythene, also known as polyethylene, is a very common type of plastic. It is made from simple chemical units joined together, and it is used in a huge range of everyday products because it is light, strong, flexible, and resistant to water and many chemicals.
Soft forms of polythene are used for things like carrier bags, food wrapping, bin liners, and plastic film. Stronger forms are used for bottles, containers, pipes, and other items that need to keep their shape. Because it can be made in different ways, it can feel thin and stretchy or hard and solid.
The material was first developed in the early twentieth century and became especially important during World War II, when it was used to insulate radar cables. After that, it spread quickly into everyday life because it was cheap to make and useful in many situations.
Today, polythene is found in packaging, household goods, farming sheets, protective coverings, and many kinds of containers. The word is often used in British English, while "polyethylene" is more common in technical writing. One important point is that most polythene does not rot away quickly, so it can cause environmental problems if it is thrown away carelessly. That is why people often talk about reusing it, reducing it, or recycling it properly.
Examples
- 1
British English
She put the wet swimsuit in a polythene bag.
Usage
polythene is mainly British English; American English usually says polyethylene
- 2
Food wrapping
The sandwiches were wrapped in polythene to keep them dry.
- 3
Temporary repair
We covered the broken window with a sheet of polythene until the glass could be replaced.
- 4
Plastic bags
Many shops have stopped giving out free polythene bags.
Forms and spellings
1 form open this card.
Main spelling
- polythenenoun