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.

1935–40, Americanism; formerly trademark Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
saran (səˈræn)
any one of a class of thermoplastic resins based on vinylidene chloride, used in fibres, moulded articles, and coatings
[C20: after Saran, trademark coined by the Dow Chemical Co]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

U.S. trademark name for PVC, 1940, by Dow Chemical Company.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Rub the fluorescent tube up and down vigorously with the saran wrap.
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