Clepsydra

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Clepsydra \Clep"sy*dra\ (?; 277), n. [L. from Gr. ?; ? 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. in {Appendix}.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  clepsydra
       n : clock that measures time by the escape of water [syn: {water
           clock}, {water glass}]
       [also: {clepsydrae} (pl)]