- mercury switch
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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.
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Universalium. 2010.
mercury switch
Look at other dictionaries:
mercury switch — ☆ mercury switch n. an electric switch consisting of a sealed capsule containing two electrodes at one end and a drop of liquid mercury which can connect the electrodes when tilted to that end … English World dictionary
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mercury switch — mer′cury switch n. elm an esp. quiet switch that opens and closes an electric circuit by shifting a vial containing a pool of mercury … From formal English to slang
mercury switch — noun : a switch in which an electric circuit is closed and opened by tilting a reservoir of liquid mercury … Useful english dictionary
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