a device, as a clepsydra, for measuring time by the flow of water.
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How to use water clock in a sentence
Perhaps the earliest mechanical time measure was the clepsydra, or water clock.The Wonder Book of Knowledge | Various
This water clock was called a clepsydra, the name being taken from two Greek words meaning 'thief of water.'Christopher and the Clockmakers | Sara Ware Bassett
The Djyotisha also teaches the art of constructing a clepsydra, or water-clock.
The water-clock (clepsydra) served as a measure of time, especially in affairs connected with the administration of justice.Quintus Claudius, Volume 1 of 2 | Ernst Eckstein
It was a delightful visit, but we could not remain so long as we wished, for we had to see the water clock.A Voyage in the 'Sunbeam' | Annie Allnut Brassey
British Dictionary definitions for water clock
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