clepsydra
noun [ C ] uk/ˈklep.sɪ.drə/ us/ˈklep.sɪ.drə/ clepsydrae /ˈklep.sɪ.driː/ /ˈklep.sɪ.driː/ clepsydras
（旧时利用水流计时的）漏壶，水钟
in the past, a device for measuring time using a flow of water
The most accurate timekeeping device of the ancient world was the waterclock or clepsydra, first found in Egypt. 古代世界最准确的计时装置是水钟或漏壶，最早出现在埃及。
a clepsydra of shining bronze 闪亮的青铜漏壶
Synonym: water clock
- More examples
- Empedocles' theory of respiration is remarkable for the use of an extended analogy with a clepsydra (water clock).
- Water clocks, also known as clepsydrae, along with sundials, are possibly the oldest time-measuring instruments.
- To provide a means of measuring time at night the Egyptians also invented the water-clock, or "clepsydra" as the Greeks later called it.
- A water clock or clepsydra is any timekeeper operated by means of a regulated flow of liquid.