WordNet (r) 3.0 (2006):

Lucy
    n 1: incomplete skeleton of female found in eastern Ethiopia in
         1974

The Free On-line Dictionary of Computing (30 December 2018):

Lucy

    A distributed constraint programming language,
   which is an actor subset of Janus.

   ["Actors as a Special Case of Concurrent Constraint
   Programming", K.  Kahn  et al, SIGPLAN
   Notices 25(10):57-66 (OOPSLA/ ECOOP '90), Oct 1990].

   (2001-03-04)