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water clock

noun
1.
a device, as a clepsydra, for measuring time by the flow of water.
Origin of water clock
1595-1605
1595-1605
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for water clock

water clock

noun
1.
any of various devices for measuring time that use the escape of water as the motive force
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 water

8
8
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