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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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Examples from the Web for mercury arc
Historical Examples
  • This effect is perhaps best witnessed on viewing a line spectrum such as that of the mercury arc, focused upon a ground glass.

    Visual Illusions Matthew Luckiesh
  • Indeed the distortion would be even greater than with the mercury arc, whose objectionable green hue is so well known.

    The Nature of Animal Light E. Newton Harvey
  • A term usually used in connection with electrolytic apparatus, mercury arc rectifiers, and electric arcs.

  • The mercury arc rectifier is a device for changing an alternating current into a direct current.

    Physics Willis Eugene Tower
  • Further experimentation with the mercury arc led to the other two inventions, the converter and the interrupter.

    Boys' Second Book of Inventions Ray Stannard Baker
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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