See water clock.
• (n.) 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.Found on http://thinkexist.com/dictionary/meaning/clepsydra/
Clepsydra is a recently described genus of diatoms, including the species Clepsydra truganiniae. It was found in Tasmania. ...Found on http://en.wikipedia.org/wiki/Clepsydra_(genus)
[ Latin from Greek ...; ... to steal, conceal + ... water.] A water clock; a contrivance for measuring time by the graduated flow of a liquid, as of water, through a small aperture. See Illust.
. Found on http://www.encyclo.co.uk/webster/C/90
A clepsydra was an ancient 'water clock' (actually timepiece) which measured time by the rate of the flow of water through small holes at the bottom of an earthenware globe.Found on http://www.probertencyclopaedia.com/browse/GC.HTM
ancient device for measuring time by the gradual flow of water. One form, used by the North American Indians and some African peoples, consisted of a ... [2 related articles]Found on http://www.britannica.com/eb/a-z/c/96
clepsydra (klep'sidru) or water clock,ancient device for measuring time by means of the flow of water from a container. A simple form of clepsydra was an earthenware vessel with a small opening through which the water dripped; as the water level dropped, it exposed marks on the walls of the vess...Found on http://www.infoplease.com/ce6/sci/A0812538.html
clepsydra (s), clepsydrae (pl) 1. An ancient device that measured time by marking the regulated flow of water through a small opening. Also called water glass. 2. The word is compounded with a Greek stem that means 'to steal', and 'water'; with the allusion that the water is flowing stealthily (flowing secretly) from it. It is said that cl...Found on http://www.wordinfo.info/words/index/info/view_unit/2525/
instrument which measures time by trickling waterFound on http://phrontistery.info/c.html
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