mercury arc


noun Electricity.

a bluish-green electric arc that has passed through a mercury-vapor cathode.

QUIZZES

Fend Off Sciolism With This Word Of The Day Quiz
Are you the Cinderella of this week’s quiz? Test your memory on the words and definitions from March 23–29.
Question 1 of 7
schlep

Origin of mercury arc

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for mercury arc

British Dictionary definitions for mercury arc

mercury arc

noun

  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