clepsydra

2 definitions found

clepsydra - Collaborative International Dictionary of English v.0.48 :

  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]

clepsydra - WordNet (r) 2.1 (2005) :

  clepsydra
      n 1: clock that measures time by the escape of water [syn:
           water clock, clepsydra, water glass]