polyester
polyester — noun
1. a man-made substance, often spun into fabric, used in things like shirts, bags,
a man-made substance, often spun into fabric, used in things like shirts, bags, and tents.
Lina chose a polyester jacket because it dried quickly after the rain.
polyester + clothing item
The hotel uses white polyester sheets that stay smooth after many washes.
common noun pair: polyester sheets
Marcus packed a light polyester tent for the trip to Sun Moon Lake.
This school tie is polyester, so it does not wrinkle easily.
Aunt Mei prefers cotton, but her work uniform is mostly polyester.
- synthetic fibre
broader term; polyester is one common kind
- PET
technical name for a widely used polyester, especially in bottles and fibres
- man-made fabric
looser everyday phrase when talking about cloth rather than chemistry
用法筆記
Usually uncountable when you mean the material in everyday use, as in 'made of polyester'. Countable use is mainly for technical or trade contexts when comparing different kinds.
常見錯誤
2. a type of chemical substance made of very long chains of repeated parts, joined
a type of chemical substance made of very long chains of repeated parts, joined by a kind of chemical link called an ester.
Dr Lin explained that a polyester has ester links in its chain.
technical pattern: polyester + ester links
The lab tested two polyesters before choosing one for the new bottle.
countable use in technical comparison
This paint uses a polyester that helps the surface stay strong.
Some polyesters can be turned into fibres, films, or hard parts.
The factory makes a strong polyester for car parts and cables.
用法筆記
Mostly found in chemistry or manufacturing texts. In ordinary speech, people usually mean sense 1, the material used in cloth and other products. Technical writing often uses the plural when comparing types.