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Welsbach burner

 [welz-bak, -bahk; Ger. vels-bahkh]  

Welsbach burner

   [welz-bak, -bahk; Ger. vels-bahkh]
noun Trademark.
a brand of gaslight consisting essentially of a Bunsen burner on which an incombustible mantle (Welsbach mantle) composed of thoria and some ceria becomes brilliantly incandescent when exposed to flame.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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World English Dictionary
Welsbach burner (ˈwɛlzbæk, German ˈvɛlsbax)
 
—n
trademark a type of gaslight in which a mantle containing thorium and cerium compounds becomes incandescent when heated by a gas flame
 
[C19: named after Carl Auer, Baron von Welsbach (1858--1929), Austrian chemist, who invented it]

Collins English Dictionary - Complete & Unabridged 10th Edition
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