Definition of water clock
: an instrument designed to measure time by the fall or flow of a quantity of water — called also
clepsydra
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Recent Examples of water clock from the Web
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The need to gauge the divisions of the day and night led the ancient Egyptians, Greeks and Romans to create sundials, water clocks and other early chronometric tools.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'water clock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of water clock
1601
Learn More about water clock
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See words that rhyme with water clock Britannica.com: Encyclopedia article about water clock
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