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mercury arc

noun, Electricity
1.
a bluish-green electric arc that has passed through a mercury-vapor cathode.
Origin of mercury arc
1915-1920
1915-20
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for mercury arc

mercury arc

noun
1.
  1. an electric discharge through ionized mercury vapour, producing a brilliant bluish-green light containing ultraviolet radiation
  2. (as modifier): a mercury-arc rectifier See also ignitron
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 Value for mercury

14
16
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