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Welsbach burner

[welz-bak, -bahk; German vels-bahkh]
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Trademark.
  1. 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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for welsbach burner

Welsbach burner

noun
  1. trademark a type of gaslight in which a mantle containing thorium and cerium compounds becomes incandescent when heated by a gas flame

Word Origin

C19: named after Carl Auer, Baron von Welsbach (1858–1929), Austrian chemist, who invented it
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