Noun
A water clock; a contrivance for measuring time by the graduated flow of a liquid, as of water, through a small aperture. See Illust. in Appendix.
Source: Webster's dictionaryThe clepsydra was a common utensil and everyone who used it must have known, in some sense, that the invisible air could resist liquid. Source: Internet
Needham (1986), Volume 4, Part 2, 479. The inflow clepsydra with an indicator rod on a float had been known in China since the beginning of the Han Dynasty in 202 BC and had replaced the outflow type. Source: Internet
Events * 671 Emperor Tenji of Japan introduces a water clock ( clepsydra ) called Rokoku. Source: Internet
Tablets of squares and cubes, calculated from 1 to 60, have been found at Senkera, and a people acquainted with the sun-dial, the clepsydra, the lever and the pulley, must have had no mean knowledge of mechanics. Source: Internet
The cases were put by the litigants themselves in the form of an exchange of single speeches timed by a water clock or clepsydra, first prosecutor then defendant. Source: Internet
The explanation of a clepsydra or water clock was a popular topic in the Middle Ages. Source: Internet