Dictionary

water clock

noun

Definition of WATER CLOCK

:  an instrument designed to measure time by the fall or flow of a quantity of water —called also clepsydra
ADVERTISEMENT

First Known Use of WATER CLOCK

1601

Browse

Next Word in the Dictionary: water closetPrevious Word in the Dictionary: water–clearAll Words Near: water clock
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears