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rayon

[rey-on] /ˈreɪ ɒn/
noun
1.
a regenerated, semisynthetic textile filament made from cellulose, cotton linters, or wood chips by treating these with caustic soda and carbon disulfide and passing the resultant solution, viscose, through spinnerets.
2.
fabric made of this filament.
adjective
3.
made of rayon.
Origin
1920-1925
1920-25; apparently based on ray1
Related forms
half-rayon, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for half-rayon

rayon

/ˈreɪɒn/
noun
1.
any of a number of textile fibres made from wood pulp or other forms of cellulose
2.
any fabric made from such a fibre
3.
(modifier) consisting of or involving rayon: a rayon shirt
Word Origin
C20: from French, from Old French rairay1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for half-rayon

rayon

n.

1924, chosen by National Retail Dry Goods Association of America, probably from French rayon "beam of light, ray," from rai (see ray (n.1)), which also was used in Middle English as a name for a type of cloth. So called because it is shiny. A more marketable alternative than the original patented name, artificial silk (1884), or the intervening attempt, Glos, which was "killed by ridicule" ["Draper's Record," June 14, 1924].

Online Etymology Dictionary, © 2010 Douglas Harper
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