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Related to clepsydra: water clock


n. pl. clep·sy·dras or clep·sy·drae (-drē′)
An ancient device that measured time by marking the regulated flow of water through a small opening. Also called water glass.

[Latin, from Greek klepsudrā : kleptein, kleps-, to steal + hudōr, water; see wed- in Indo-European roots.]


n, pl -dras or -drae (-ˌdriː)
(Horology) an ancient device for measuring time by the flow of water or mercury through a small aperture. Also called: water clock
[C17: from Latin, from Greek klepsudra, from kleptein to steal + hudōr water]


(ˈklɛp sɪ drə)

n., pl. -dras, -drae (-ˌdri)
[1640–50; < Latin < Greek klepsýdra <kléptein to steal + hýdōr water]


an instrument for measuring time by the controlled flow of water or mercury through a small opening.
See also: Instruments, Time
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.clepsydra - clock that measures time by the escape of waterclepsydra - clock that measures time by the escape of water
clock - a timepiece that shows the time of day
References in periodicals archive ?
Their set will include hit songs Clepsydra (Hourglass) and Oniropagida (Dream Catcher).
CLEPSYDRA A Jingle in two short couplets B Critical period C Water clock who am I?
Those already pencilled in include 2010 broodmare of the year Binche, dam of Group 1 winners Proviso and Byword, Heat Haze, a dual Grade 1-winning half-sister to Dansili and Cacique, and Clepsydra, dam of the Group 1-winning fillies Passage Of Time and Timepiece.
The section on time measurement features three essays: technological development from clepsydra to clock, the personal account of a court astrologer, and Ottoman clock towers.
By means of an astrolabe or clepsydra (shisha-i sa'at, lit, hourglass), (80) we determine the time of the start and end of the eclipse.
These questions assessed students' ability to connect the processes in a verbally complex caption to a static diagram and infer how the clepsydra worked, that is, to understand an image-language relation of distribution where material processes were distributed across image and caption in the following manner.
The most precise time-keeping device of the ancient world was the water clock, or clepsydra, one of which was found in the tomb of the Egyptian pharaoh Amenhotep I (1525-1504 BC).
thus brought a lot of youthful ingenuity to the table, and no more so than with student works from RISD's Department of Furniture Design, such as Phillip Mann's Clepsydra dispenser (a parody of an ancient Roman water clock, emphasizing the theft of time), Sonia Baltodano's Time Compression (three rows of three coffee cups that morph into an ellipse and then a collapsed line), and Henrik Soderstrom's expandable Family Tree Chandelier (comprised of branching, tear-shaped photographic pendants).
10,12,15) Herophilus, like Praxagoras, was interested in the diagnostic value of the pulse and constructed a special clepsydra to measure this.
The judges' words were real doozies, too," quipped team captain Louise Thomas, of the six final words that decided the championship - campodeiform, clepsydra, coadjutor, dipnosophist, drepaniform and the dreaded drosophilist.
Elsewhere in the park, at Lower Geyser Basin, where we stopped to see the Fountain Paint Pots, we were treated to an abrupt and sustained eruption of Clepsydra Geyser - so vigorous that the steam cloud engulfed part of the boardwalk, scattering a handful of visitors.