saran

noun

1. a thermoplastic copolymer of vinylidene chloride and usually small amounts of vinyl chloride or acrylonitrile: used as a fiber, for packaging, and for making acid-resistant pipe.

noun

1. any one of a class of thermoplastic resins based on vinylidene chloride, used in fibres, moulded articles, and coatings

U.S. trademark name for PVC used as a cling-film, 1940, by Dow Chemical Company.