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thermos

[thur-muh s] /ˈθɜr məs/
noun
1.
a vacuum bottle or similar container lined with an insulating material, such as polystyrene, to keep liquids hot or cold.
Also called thermos bottle.
Origin
1905-1910
1905-10; formerly a trademark
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for thermos

Thermos

/ˈθɜːməs/
noun
1.
trademark a type of stoppered vacuum flask used to preserve the temperature of its contents See also Dewar flask
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for thermos
Thermos
trademark registered in Britain 1907, invented by Sir James Dewar (patented 1904 but not named then), from Gk. thermos "hot" (see thermal). Dewar built the first one in 1892, but it was first manufactured commercially in Germany in 1904, when two glass blowers formed Thermos GmbH. Supposedly the company sponsored a contest to name the thing, and a Munich resident won with a submission of Thermos.
Online Etymology Dictionary, © 2010 Douglas Harper
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12
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