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mercury switch
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mercury switch
noun Electricity.
an especially quiet switch that opens and closes an electric circuit by shifting a vial containing a pool of mercury so as to cover or uncover the contacts.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Link To mercury switch
Collins
World English Dictionary
| mercury switch | |
| —n | |
| electrical engineering a switch in which a circuit is completed between two terminals by liquid mercury when the switch is tilted | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Dictionary.com's 21st Century Lexicon
| Main Entry: | mercury switch |
| Part of Speech: | n |
| Definition: | an electrical switch that opens and closes a circuit by shifting a vial of mercury to silently cover or uncover the contacts |
| Example: | The mercury switch is very useful for all sorts of applications, from water level sensing to mailbox open/closed. |
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