lacerta \lacer"ta\, n. l. a lizard. see lizard.
   1. zool. a genus of lizards. see lizard.
      1913 webster

   note: formerly it included nearly all the known lizards. it
         is now restricted to certain diurnal old world species,
         like the green lizard lacerta viridis and the sand
         lizard lacerta agilis, of europe.
         1913 webster

   2. astron. the lizard, a northern constellation.
      1913 webster
see also:
lizard lacerta viridis lacerta agilis 

lacerta viridis
     n : a common eurasian lizard about a foot long syn: green
         lizard
see also:
green lizard