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Clark cell

British  
/ klɑːk /

noun

  1. physics a cell having a mercury cathode surrounded by a paste of mercuric sulphate and a zinc anode in a saturated solution of zinc sulphate. Formerly used as a standard, its emf is 1.4345 volts

"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

Etymology

Origin of Clark cell

C19: named after Hosiah Clark (died 1898), English scientist

Example Sentences

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Griffiths’ final result for the average value of the calorie over this range was 4.192 joules, taking the E.M.F. of the Clark cell at 15� C. to be 1.4342 volts.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" by Various

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.