noun[mass noun] British
A tough, light flexible synthetic resin made by polymerizing ethylene, chiefly used for plastic bags, food containers, and other packaging: strips of black polythene [as modifier]: a polythene bag
More example sentences
- Polyethylene, or polythene as it was marketed in Britain, began as a polymer with little practical use.
- New plastics were invented such as neoprene in 1932, polythene in 1933 and Perspex in 1934.
- I recall the poinsettia being the most labour intensive, involving complicated light control and messing about with black polythene bags.
1930s: contraction of polyethylene.
For editors and proofreaders
Line breaks: poly|thene
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